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10031511155 = 5113139127733
BaseRepresentation
bin10010101011110110…
…01011011001110011
3221220010001120022012
421111323023121303
5131021031324110
64335230033135
7503406303131
oct112573133163
927803046265
1010031511155
114288587896
121b3b6487ab
13c3b3a1223
146b2406751
153daa34905
hex255ecb673

10031511155 has 16 divisors (see below), whose sum is σ = 12231807840. Its totient is φ = 7896903168.

The previous prime is 10031511107. The next prime is 10031511229. The reversal of 10031511155 is 55111513001.

It is a cyclic number.

It is not a de Polignac number, because 10031511155 - 28 = 10031510899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10031511155.

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, 14669 + ... + 142401.

It is an arithmetic number, because the mean of its divisors is an integer number (764487990).

Almost surely, 210031511155 is an apocalyptic number.

10031511155 is a deficient number, since it is larger than the sum of its proper divisors (2200296685).

10031511155 is a wasteful number, since it uses less digits than its factorization.

10031511155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127990.

The product of its (nonzero) digits is 375, while the sum is 23.

The spelling of 10031511155 in words is "ten billion, thirty-one million, five hundred eleven thousand, one hundred fifty-five".

Divisors: 1 5 113 139 565 695 15707 78535 127733 638665 14433829 17754887 72169145 88774435 2006302231 10031511155