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253180664 = 23112877053
BaseRepresentation
bin11110001011100…
…11101011111000
3122122101220120122
433011303223320
51004303240124
641042312412
76163000022
oct1705635370
9578356518
10253180664
1111aa06420
1270958708
13405b7359
14258a7012
151736175e
hexf173af8

253180664 has 16 divisors (see below), whose sum is σ = 517869720. Its totient is φ = 115082080.

The previous prime is 253180663. The next prime is 253180667. The reversal of 253180664 is 466081352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253180663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438439 + ... + 1438614.

Almost surely, 2253180664 is an apocalyptic number.

It is an amenable number.

253180664 is an abundant number, since it is smaller than the sum of its proper divisors (264689056).

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

253180664 is a wasteful number, since it uses less digits than its factorization.

253180664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877070 (or 2877066 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 253180664 is about 15911.6518312839. The cubic root of 253180664 is about 632.6208647984.

The spelling of 253180664 in words is "two hundred fifty-three million, one hundred eighty thousand, six hundred sixty-four".

Divisors: 1 2 4 8 11 22 44 88 2877053 5754106 11508212 23016424 31647583 63295166 126590332 253180664