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252262407 = 3313477817
BaseRepresentation
bin11110000100100…
…11100000000111
3122120200020222010
433002103200013
51004034344112
641010505303
76152123625
oct1702234007
9576606863
10252262407
1111a439531
1270595233
13403553c7
1425708515
151722e63c
hexf093807

252262407 has 16 divisors (see below), whose sum is σ = 348244992. Its totient is φ = 162260160.

The previous prime is 252262399. The next prime is 252262421. The reversal of 252262407 is 704262252.

It is not a de Polignac number, because 252262407 - 23 = 252262399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252262447) 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, 28363 + ... + 36179.

It is an arithmetic number, because the mean of its divisors is an integer number (21765312).

Almost surely, 2252262407 is an apocalyptic number.

252262407 is a deficient number, since it is larger than the sum of its proper divisors (95982585).

252262407 is a wasteful number, since it uses less digits than its factorization.

252262407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8198.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 252262407 is about 15882.7707595369. The cubic root of 252262407 is about 631.8551240518.

The spelling of 252262407 in words is "two hundred fifty-two million, two hundred sixty-two thousand, four hundred seven".

Divisors: 1 3 31 93 347 1041 7817 10757 23451 32271 242327 726981 2712499 8137497 84087469 252262407