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252847930 = 2525284793
BaseRepresentation
bin11110001001000…
…10011100111010
3122121210000011011
433010202130322
51004212113210
641031224134
76160112656
oct1704423472
9577700134
10252847930
1111a7a9435
127081804a
13404cba7a
142581ba66
15172e7d8a
hexf12273a

252847930 has 8 divisors (see below), whose sum is σ = 455126292. Its totient is φ = 101139168.

The previous prime is 252847927. The next prime is 252847939. The reversal of 252847930 is 39748252.

252847930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 219543489 + 33304441 = 14817^2 + 5771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (252847939) 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, 12642387 + ... + 12642406.

Almost surely, 2252847930 is an apocalyptic number.

252847930 is a deficient number, since it is larger than the sum of its proper divisors (202278362).

252847930 is a wasteful number, since it uses less digits than its factorization.

252847930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25284800.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 252847930 is about 15901.1927225602. The cubic root of 252847930 is about 632.3436098840.

The spelling of 252847930 in words is "two hundred fifty-two million, eight hundred forty-seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 25284793 50569586 126423965 252847930