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252528136 = 2379974523
BaseRepresentation
bin11110000110101…
…00011000001000
3122121011202110221
433003110120020
51004121400021
641020315424
76154311430
oct1703243010
9577152427
10252528136
1111a600143
12706a2b74
1340419343
14257772c0
1517283241
hexf0d4608

252528136 has 32 divisors (see below), whose sum is σ = 541794240. Its totient is φ = 108093888.

The previous prime is 252528131. The next prime is 252528169. The reversal of 252528136 is 631825252.

It is not an unprimeable number, because it can be changed into a prime (252528131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53571 + ... + 58093.

It is an arithmetic number, because the mean of its divisors is an integer number (16931070).

Almost surely, 2252528136 is an apocalyptic number.

It is an amenable number.

252528136 is an abundant number, since it is smaller than the sum of its proper divisors (289266104).

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

252528136 is a wasteful number, since it uses less digits than its factorization.

252528136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533 (or 5529 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 252528136 is about 15891.1338802491. The cubic root of 252528136 is about 632.0769080684.

The spelling of 252528136 in words is "two hundred fifty-two million, five hundred twenty-eight thousand, one hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 56 997 1994 3988 4523 6979 7976 9046 13958 18092 27916 31661 36184 55832 63322 126644 253288 4509431 9018862 18037724 31566017 36075448 63132034 126264068 252528136