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252827830 = 25197128339
BaseRepresentation
bin11110001000111…
…01100010110110
3122121201222120201
433010131202312
51004210442310
641030551114
76160000243
oct1704354266
9577658521
10252827830
1111a795322
127080849a
13404c2888
14258145ca
15172e1e3a
hexf11d8b6

252827830 has 16 divisors (see below), whose sum is σ = 457403760. Its totient is φ = 100616992.

The previous prime is 252827821. The next prime is 252827837. The reversal of 252827830 is 38728252.

It is a self number, because there is not a number n which added to its sum of digits gives 252827830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252827837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62200 + ... + 66139.

It is an arithmetic number, because the mean of its divisors is an integer number (28587735).

Almost surely, 2252827830 is an apocalyptic number.

252827830 is a deficient number, since it is larger than the sum of its proper divisors (204575930).

252827830 is a wasteful number, since it uses less digits than its factorization.

252827830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128543.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 252827830 is about 15900.5606819382. The cubic root of 252827830 is about 632.3268535101.

The spelling of 252827830 in words is "two hundred fifty-two million, eight hundred twenty-seven thousand, eight hundred thirty".

Divisors: 1 2 5 10 197 394 985 1970 128339 256678 641695 1283390 25282783 50565566 126413915 252827830