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252421074 = 23214023393
BaseRepresentation
bin11110000101110…
…10001111010010
3122120222022121200
433002322033102
51004104433244
641014132030
76153354333
oct1702721722
9576868550
10252421074
1111a537764
1270651016
13403ac6a9
142574a28a
1517261669
hexf0ba3d2

252421074 has 12 divisors (see below), whose sum is σ = 546912366. Its totient is φ = 84140352.

The previous prime is 252421027. The next prime is 252421097. The reversal of 252421074 is 470124252.

It can be written as a sum of positive squares in only one way, i.e., 199233225 + 53187849 = 14115^2 + 7293^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7011679 + ... + 7011714.

Almost surely, 2252421074 is an apocalyptic number.

252421074 is an abundant number, since it is smaller than the sum of its proper divisors (294491292).

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

252421074 is a wasteful number, since it uses less digits than its factorization.

252421074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14023401 (or 14023398 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 252421074 is about 15887.7649151792. The cubic root of 252421074 is about 631.9875701903.

The spelling of 252421074 in words is "two hundred fifty-two million, four hundred twenty-one thousand, seventy-four".

Divisors: 1 2 3 6 9 18 14023393 28046786 42070179 84140358 126210537 252421074