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161100264 = 23313239719
BaseRepresentation
bin10011001101000…
…11000111101000
3102020010202000110
421212203013220
5312220202024
623552534320
73664221033
oct1146430750
9366122013
10161100264
1182a34016
1245b513a0
13274b7500
141757801a
15e223629
hex99a31e8

161100264 has 48 divisors (see below), whose sum is σ = 436125600. Its totient is φ = 49568064.

The previous prime is 161100253. The next prime is 161100271. The reversal of 161100264 is 462001161.

It is a self number, because there is not a number n which added to its sum of digits gives 161100264.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 15804 + ... + 23915.

It is an arithmetic number, because the mean of its divisors is an integer number (9085950).

Almost surely, 2161100264 is an apocalyptic number.

It is an amenable number.

161100264 is an abundant number, since it is smaller than the sum of its proper divisors (275025336).

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

161100264 is a wasteful number, since it uses less digits than its factorization.

161100264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39754 (or 39737 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 161100264 is about 12692.5278806076. The cubic root of 161100264 is about 544.1250883772.

The spelling of 161100264 in words is "one hundred sixty-one million, one hundred thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 169 312 338 507 676 1014 1352 2028 4056 39719 79438 119157 158876 238314 317752 476628 516347 953256 1032694 1549041 2065388 3098082 4130776 6196164 6712511 12392328 13425022 20137533 26850044 40275066 53700088 80550132 161100264