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10072155700 = 2252100721557
BaseRepresentation
bin10010110000101100…
…01110011000110100
3221222221112112010201
421120112032120310
5131111432440300
64343241130244
7504411624265
oct113026163064
927887475121
1010072155700
1142a9518722
121b51189984
13c46932259
146b798696c
153de3b266a
hex25858e634

10072155700 has 18 divisors (see below), whose sum is σ = 21856578086. Its totient is φ = 4028862240.

The previous prime is 10072155679. The next prime is 10072155703. The reversal of 10072155700 is 755127001.

It can be written as a sum of positive squares in 3 ways, for example, as 3433491216 + 6638664484 = 58596^2 + 81478^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10072155703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50360679 + ... + 50360878.

Almost surely, 210072155700 is an apocalyptic number.

10072155700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10072155700 is an abundant number, since it is smaller than the sum of its proper divisors (11784422386).

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

10072155700 is a wasteful number, since it uses less digits than its factorization.

10072155700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100721571 (or 100721564 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 28.

The spelling of 10072155700 in words is "ten billion, seventy-two million, one hundred fifty-five thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 100721557 201443114 402886228 503607785 1007215570 2014431140 2518038925 5036077850 10072155700