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253020164 = 22401915739
BaseRepresentation
bin11110001010011…
…00100000000100
3122122002202102012
433011030200010
51004233121124
641035033352
76161431055
oct1705144004
9578082365
10253020164
1111a906881
127089b858
134055c297
142586472c
151732de0e
hexf14c804

253020164 has 12 divisors (see below), whose sum is σ = 442923600. Its totient is φ = 126470568.

The previous prime is 253020149. The next prime is 253020167. The reversal of 253020164 is 461020352.

It is not an unprimeable number, because it can be changed into a prime (253020167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8207 + ... + 23945.

It is an arithmetic number, because the mean of its divisors is an integer number (36910300).

Almost surely, 2253020164 is an apocalyptic number.

It is an amenable number.

253020164 is a deficient number, since it is larger than the sum of its proper divisors (189903436).

253020164 is a wasteful number, since it uses less digits than its factorization.

253020164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19762 (or 19760 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 253020164 is about 15906.6075578673. The cubic root of 253020164 is about 632.4871564411.

The spelling of 253020164 in words is "two hundred fifty-three million, twenty thousand, one hundred sixty-four".

Divisors: 1 2 4 4019 8038 15739 16076 31478 62956 63255041 126510082 253020164