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264731120 = 2453309139
BaseRepresentation
bin11111100011101…
…11100111110000
3200110010201211022
433301313213300
51020232343440
642134035012
76363114563
oct1761674760
9613121738
10264731120
11126485455
12747a8a68
1342acc844
14272324da
1518393cb5
hexfc779f0

264731120 has 20 divisors (see below), whose sum is σ = 615500040. Its totient is φ = 105892416.

The previous prime is 264731107. The next prime is 264731141. The reversal of 264731120 is 21137462.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 264731120.

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, 1654490 + ... + 1654649.

It is an arithmetic number, because the mean of its divisors is an integer number (30775002).

Almost surely, 2264731120 is an apocalyptic number.

264731120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264731120 is an abundant number, since it is smaller than the sum of its proper divisors (350768920).

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

264731120 is a wasteful number, since it uses less digits than its factorization.

264731120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309152 (or 3309146 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 264731120 is about 16270.5599166101. The cubic root of 264731120 is about 642.0985152405.

Adding to 264731120 its reverse (21137462), we get a palindrome (285868582).

The spelling of 264731120 in words is "two hundred sixty-four million, seven hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3309139 6618278 13236556 16545695 26473112 33091390 52946224 66182780 132365560 264731120