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252897286 = 2179706417
BaseRepresentation
bin11110001001011…
…10100000000110
3122121212111212011
433010232200012
51004220203121
641032244434
76160406605
oct1704564006
9577774764
10252897286
1111a832524
127084071a
1340518385
1425831a3c
15173077e1
hexf12e806

252897286 has 8 divisors (see below), whose sum is σ = 381465720. Its totient is φ = 125742048.

The previous prime is 252897251. The next prime is 252897299. The reversal of 252897286 is 682798252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 352851 + ... + 353566.

It is an arithmetic number, because the mean of its divisors is an integer number (47683215).

Almost surely, 2252897286 is an apocalyptic number.

252897286 is a deficient number, since it is larger than the sum of its proper divisors (128568434).

252897286 is a wasteful number, since it uses less digits than its factorization.

252897286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706598.

The product of its digits is 967680, while the sum is 49.

The square root of 252897286 is about 15902.7446058849. The cubic root of 252897286 is about 632.3847517682.

The spelling of 252897286 in words is "two hundred fifty-two million, eight hundred ninety-seven thousand, two hundred eighty-six".

Divisors: 1 2 179 358 706417 1412834 126448643 252897286