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252666092 = 2279023789
BaseRepresentation
bin11110000111101…
…10000011101100
3122121102202201102
433003312003230
51004140303332
641023302232
76155424560
oct1703660354
9577382642
10252666092
1111a694858
127074a978
1340467083
14257b16a0
15172ae062
hexf0f60ec

252666092 has 12 divisors (see below), whose sum is σ = 505332240. Its totient is φ = 108285456.

The previous prime is 252666091. The next prime is 252666133. The reversal of 252666092 is 290666252.

It is a happy number.

252666092 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (252666091) 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, 4511867 + ... + 4511922.

It is an arithmetic number, because the mean of its divisors is an integer number (42111020).

Almost surely, 2252666092 is an apocalyptic number.

It is an amenable number.

252666092 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252666092 is a wasteful number, since it uses less digits than its factorization.

252666092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023800 (or 9023798 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 252666092 is about 15895.4739470077. The cubic root of 252666092 is about 632.1919882192.

The spelling of 252666092 in words is "two hundred fifty-two million, six hundred sixty-six thousand, ninety-two".

Divisors: 1 2 4 7 14 28 9023789 18047578 36095156 63166523 126333046 252666092