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253086361 = 11176732011
BaseRepresentation
bin11110001010111…
…00101010011001
3122122020010012221
433011130222121
51004242230421
641040304041
76162125053
oct1705345231
9578203187
10253086361
1111a951590
1270912021
1340583458
14258808d3
1517343841
hexf15ca99

253086361 has 16 divisors (see below), whose sum is σ = 292915008. Its totient is φ = 216115200.

The previous prime is 253086307. The next prime is 253086373. The reversal of 253086361 is 163680352.

It is a cyclic number.

It is not a de Polignac number, because 253086361 - 27 = 253086233 is a prime.

It is a super-2 number, since 2×2530863612 = 128105412248444642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253086961) 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, 124846 + ... + 126856.

It is an arithmetic number, because the mean of its divisors is an integer number (18307188).

Almost surely, 2253086361 is an apocalyptic number.

It is an amenable number.

253086361 is a deficient number, since it is larger than the sum of its proper divisors (39828647).

253086361 is a wasteful number, since it uses less digits than its factorization.

253086361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 253086361 is about 15908.6882237349. The cubic root of 253086361 is about 632.5423102819.

The spelling of 253086361 in words is "two hundred fifty-three million, eighty-six thousand, three hundred sixty-one".

Divisors: 1 11 17 187 673 2011 7403 11441 22121 34187 125851 376057 1353403 14887433 23007851 253086361