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100010101000100 = 22524127190919901
BaseRepresentation
bin10110101111010101101010…
…100010110100011110100100
3111010002212112220010111111112
4112233111222202310132210
5101102031141324000400
6552412001154124152
730031330351213154
oct2657255242643644
9433085486114445
10100010101000100
1129959055836045
12b272764580658
1343a5bb1a37195
141a9a72c546764
15b8675b47d835
hex5af56a8b47a4

100010101000100 has 144 divisors (see below), whose sum is σ = 223182571567872. Its totient is φ = 38876112000000.

The previous prime is 100010101000087. The next prime is 100010101000219. The reversal of 100010101000100 is 1000101010001.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10101005150 + ... + 10101015050.

Almost surely, 2100010101000100 is an apocalyptic number.

100010101000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100010101000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111591285783936).

100010101000100 is an abundant number, since it is smaller than the sum of its proper divisors (123172470567772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100010101000100 is a wasteful number, since it uses less digits than its factorization.

100010101000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19318 (or 19311 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 100010101000100 its reverse (1000101010001), we get a palindrome (101010202010101).

Subtracting from 100010101000100 its reverse (1000101010001), we obtain a palindrome (99009999990099).

100010101000100 divided by its reverse (1000101010001) gives a square (100 = 102).

The spelling of 100010101000100 in words is "one hundred trillion, ten billion, one hundred one million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 41 50 82 100 164 205 271 410 542 820 1025 1084 1355 2050 2710 4100 5420 6775 9091 9901 11111 13550 18182 19802 22222 27100 36364 39604 44444 45455 49505 55555 90910 99010 111110 181820 198020 222220 227275 247525 277775 372731 405941 454550 495050 555550 745462 811882 909100 990100 1111100 1490924 1623764 1863655 2029705 2463661 2683171 3727310 4059410 4927322 5366342 7454620 8118820 9318275 9854644 10148525 10732684 12318305 13415855 18636550 20297050 24636610 26831710 37273100 40594100 49273220 53663420 61591525 67079275 90009991 101010101 110010011 123183050 134158550 180019982 202020202 220020022 246366100 268317100 360039964 404040404 440040044 450049955 505050505 550050055 900099910 1010101010 1100100110 1800199820 2020202020 2200200220 2250249775 2525252525 2750250275 3690409631 4500499550 5050505050 5500500550 7380819262 9000999100 10101010100 11001001100 14761638524 18452048155 24392707561 36904096310 48785415122 73808192620 92260240775 97570830244 121963537805 184520481550 243927075610 369040963100 487854151220 609817689025 1000101010001 1219635378050 2000202020002 2439270756100 4000404040004 5000505050005 10001010100010 20002020200020 25002525250025 50005050500050 100010101000100