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252710842 = 2126355421
BaseRepresentation
bin11110001000000…
…00111110111010
3122121112001002211
433010000332322
51004143221332
641024245334
76156002206
oct1704007672
9577461084
10252710842
1111a71543a
127077084a
1340481557
14257c3b06
15172bc447
hexf100fba

252710842 has 4 divisors (see below), whose sum is σ = 379066266. Its totient is φ = 126355420.

The previous prime is 252710833. The next prime is 252710863. The reversal of 252710842 is 248017252.

It is a happy number.

252710842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 241211961 + 11498881 = 15531^2 + 3391^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63177709 + ... + 63177712.

Almost surely, 2252710842 is an apocalyptic number.

252710842 is a deficient number, since it is larger than the sum of its proper divisors (126355424).

252710842 is a wasteful number, since it uses less digits than its factorization.

252710842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126355423.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 252710842 is about 15896.8815180840. The cubic root of 252710842 is about 632.2293087809.

The spelling of 252710842 in words is "two hundred fifty-two million, seven hundred ten thousand, eight hundred forty-two".

Divisors: 1 2 126355421 252710842