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100211010020 = 225113171436923
BaseRepresentation
bin101110101010100001…
…0101010100111100100
3100120122212200202120122
41131111002222213210
53120213004310040
6114011501421112
710145215350032
oct1352502524744
9316585622518
10100211010020
1139554559050
121750856a798
1395b0450244
144bc90ab552
152917a1b1b5
hex17550aa9e4

100211010020 has 48 divisors (see below), whose sum is σ = 230298683328. Its totient is φ = 36325388160.

The previous prime is 100211010019. The next prime is 100211010043. The reversal of 100211010020 is 20010112001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648722 + ... + 788201.

It is an arithmetic number, because the mean of its divisors is an integer number (4797889236).

Almost surely, 2100211010020 is an apocalyptic number.

100211010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211010020 is an abundant number, since it is smaller than the sum of its proper divisors (130087673308).

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

100211010020 is a wasteful number, since it uses less digits than its factorization.

100211010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437260 (or 1437258 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100211010020 its reverse (20010112001), we get a palindrome (120221122021).

The spelling of 100211010020 in words is "one hundred billion, two hundred eleven million, ten thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 317 634 1268 1585 3170 3487 6340 6974 13948 17435 34870 69740 1436923 2873846 5747692 7184615 14369230 15806153 28738460 31612306 63224612 79030765 158061530 316123060 455504591 911009182 1822018364 2277522955 4555045910 5010550501 9110091820 10021101002 20042202004 25052752505 50105505010 100211010020