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252897830 = 2525289783
BaseRepresentation
bin11110001001011…
…10101000100110
3122121212112121022
433010232220212
51004220212310
641032251142
76160411313
oct1704565046
9577775538
10252897830
1111a832979
1270840ab2
13405186b3
1425831d0a
1517307a55
hexf12ea26

252897830 has 8 divisors (see below), whose sum is σ = 455216112. Its totient is φ = 101159128.

The previous prime is 252897829. The next prime is 252897889. The reversal of 252897830 is 38798252.

252897830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12644882 + ... + 12644901.

It is an arithmetic number, because the mean of its divisors is an integer number (56902014).

Almost surely, 2252897830 is an apocalyptic number.

252897830 is a deficient number, since it is larger than the sum of its proper divisors (202318282).

252897830 is a wasteful number, since it uses less digits than its factorization.

252897830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25289790.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 252897830 is about 15902.7617098415. The cubic root of 252897830 is about 632.3852052026.

The spelling of 252897830 in words is "two hundred fifty-two million, eight hundred ninety-seven thousand, eight hundred thirty".

Divisors: 1 2 5 10 25289783 50579566 126448915 252897830