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100001001010100 = 22521227198148779
BaseRepresentation
bin10110101111001101001100…
…001001000111001110110100
3111010002000001200220002222212
4112233031030021013032310
5101101404022224310400
6552403454201512552
730030556012451111
oct2657151411071664
9433060050802885
10100001001010100
112995520605a953
12b270a44aa2758
1343a5091647b08
141a9a107b43908
15b863c7600335
hex5af34c2473b4

100001001010100 has 36 divisors (see below), whose sum is σ = 217003967107200. Its totient is φ = 40000069544160.

The previous prime is 100001001010049. The next prime is 100001001010181. The reversal of 100001001010100 is 1010100100001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8197511 + ... + 16346289.

It is an arithmetic number, because the mean of its divisors is an integer number (6027887975200).

Almost surely, 2100001001010100 is an apocalyptic number.

100001001010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100001001010100 is an abundant number, since it is smaller than the sum of its proper divisors (117002966097100).

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

100001001010100 is a wasteful number, since it uses less digits than its factorization.

100001001010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271512 (or 8271505 counting only the distinct ones).

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

Adding to 100001001010100 its reverse (1010100100001), we get a palindrome (101011101110101).

The spelling of 100001001010100 in words is "one hundred trillion, one billion, one million, ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 122719 245438 490876 613595 1227190 2454380 3067975 6135950 8148779 12271900 16297558 32595116 40743895 81487790 162975580 203719475 407438950 814877900 1000010010101 2000020020202 4000040040404 5000050050505 10000100101010 20000200202020 25000250252525 50000500505050 100001001010100