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161160164 = 22113662731
BaseRepresentation
bin10011001101100…
…01101111100100
3102020020210011222
421212301233210
5312224111124
623554115512
73664560464
oct1146615744
9366223158
10161160164
1182a75020
1245b7bb98
1327508859
1417591ba4
15e23625e
hex99b1be4

161160164 has 12 divisors (see below), whose sum is σ = 307669488. Its totient is φ = 73254600.

The previous prime is 161160161. The next prime is 161160193. The reversal of 161160164 is 461061161.

It is not an unprimeable number, because it can be changed into a prime (161160161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831322 + ... + 1831409.

It is an arithmetic number, because the mean of its divisors is an integer number (25639124).

Almost surely, 2161160164 is an apocalyptic number.

It is an amenable number.

161160164 is a deficient number, since it is larger than the sum of its proper divisors (146509324).

161160164 is a wasteful number, since it uses less digits than its factorization.

161160164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662746 (or 3662744 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 161160164 is about 12694.8873173416. The cubic root of 161160164 is about 544.1925185461.

The spelling of 161160164 in words is "one hundred sixty-one million, one hundred sixty thousand, one hundred sixty-four".

Divisors: 1 2 4 11 22 44 3662731 7325462 14650924 40290041 80580082 161160164