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252899426 = 21331437297
BaseRepresentation
bin11110001001011…
…11000001100010
3122121212121210102
433010233001202
51004220240201
641032302402
76160416053
oct1704570142
9577777712
10252899426
1111a83409a
1270841a02
1340519340
142583272a
151730826b
hexf12f062

252899426 has 32 divisors (see below), whose sum is σ = 431574528. Its totient is φ = 110315520.

The previous prime is 252899417. The next prime is 252899431. The reversal of 252899426 is 624998252.

It is a super-2 number, since 2×2528994262 = 127916239342258952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31010 + ... + 38306.

It is an arithmetic number, because the mean of its divisors is an integer number (13486704).

Almost surely, 2252899426 is an apocalyptic number.

252899426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

252899426 is a deficient number, since it is larger than the sum of its proper divisors (178675102).

252899426 is a wasteful number, since it uses less digits than its factorization.

252899426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386.

The product of its digits is 622080, while the sum is 47.

The square root of 252899426 is about 15902.8118897257. The cubic root of 252899426 is about 632.3865354957.

The spelling of 252899426 in words is "two hundred fifty-two million, eight hundred ninety-nine thousand, four hundred twenty-six".

Divisors: 1 2 13 26 31 43 62 86 403 559 806 1118 1333 2666 7297 14594 17329 34658 94861 189722 226207 313771 452414 627542 2940691 4079023 5881382 8158046 9726901 19453802 126449713 252899426