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264136161 = 3617971811
BaseRepresentation
bin11111011111001…
…10010111100001
3200102000111200210
433233212113201
51020104324121
642113204333
76355056162
oct1757462741
9612014623
10264136161
11126109453
12745606a9
1342951ab3
1427119769
15182c7876
hexfbe65e1

264136161 has 16 divisors (see below), whose sum is σ = 358602048. Its totient is φ = 172891200.

The previous prime is 264136127. The next prime is 264136181. The reversal of 264136161 is 161631462.

It is not a de Polignac number, because 264136161 - 211 = 264134113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264136111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144946 + ... + 146756.

It is an arithmetic number, because the mean of its divisors is an integer number (22412628).

Almost surely, 2264136161 is an apocalyptic number.

It is an amenable number.

264136161 is a deficient number, since it is larger than the sum of its proper divisors (94465887).

264136161 is a wasteful number, since it uses less digits than its factorization.

264136161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672.

The product of its digits is 5184, while the sum is 30.

The square root of 264136161 is about 16252.2663342686. The cubic root of 264136161 is about 641.6171351958.

The spelling of 264136161 in words is "two hundred sixty-four million, one hundred thirty-six thousand, one hundred sixty-one".

Divisors: 1 3 61 183 797 1811 2391 5433 48617 110471 145851 331413 1443367 4330101 88045387 264136161