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161560052 = 22359112507
BaseRepresentation
bin10011010000100…
…11010111110100
3102021000002201122
421220103113310
5312324410202
624010443112
74001144363
oct1150232764
9367002648
10161560052
1183218505
1246133498
1327618884
14176577da
15e2b49a2
hex9a135f4

161560052 has 12 divisors (see below), whose sum is σ = 283520160. Its totient is φ = 80554296.

The previous prime is 161560043. The next prime is 161560067. The reversal of 161560052 is 250065161.

161560052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1615600522 = 52203300804485408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54818 + ... + 57689.

It is an arithmetic number, because the mean of its divisors is an integer number (23626680).

Almost surely, 2161560052 is an apocalyptic number.

It is an amenable number.

161560052 is a deficient number, since it is larger than the sum of its proper divisors (121960108).

161560052 is a wasteful number, since it uses less digits than its factorization.

161560052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112870 (or 112868 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 161560052 is about 12710.6275218810. The cubic root of 161560052 is about 544.6422498556.

The spelling of 161560052 in words is "one hundred sixty-one million, five hundred sixty thousand, fifty-two".

Divisors: 1 2 4 359 718 1436 112507 225014 450028 40390013 80780026 161560052