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161268076 = 22317611709
BaseRepresentation
bin10011001110011…
…00000101101100
3102020110021012201
421213030011230
5312241034301
624000311244
73665520214
oct1147140554
9366407181
10161268076
1183039102
1246012524
13275459c8
14175bd244
15e258201
hex99cc16c

161268076 has 24 divisors (see below), whose sum is σ = 291876480. Its totient is φ = 77884800.

The previous prime is 161268071. The next prime is 161268077. The reversal of 161268076 is 670862161.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (161268071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93510 + ... + 95218.

It is an arithmetic number, because the mean of its divisors is an integer number (12161520).

Almost surely, 2161268076 is an apocalyptic number.

It is an amenable number.

161268076 is a deficient number, since it is larger than the sum of its proper divisors (130608404).

161268076 is a wasteful number, since it uses less digits than its factorization.

161268076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 161268076 is about 12699.1368210599. The cubic root of 161268076 is about 544.3139542640.

The spelling of 161268076 in words is "one hundred sixty-one million, two hundred sixty-eight thousand, seventy-six".

Divisors: 1 2 4 31 62 124 761 1522 1709 3044 3418 6836 23591 47182 52979 94364 105958 211916 1300549 2601098 5202196 40317019 80634038 161268076