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252542524 = 221321123017
BaseRepresentation
bin11110000110101…
…11111000111100
3122121012111012211
433003113320330
51004122330044
641020510204
76154401403
oct1703277074
9577174184
10252542524
1111a60aa33
12706ab364
1340422a60
142577c63a
1517287634
hexf0d7e3c

252542524 has 24 divisors (see below), whose sum is σ = 478221968. Its totient is φ = 116000640.

The previous prime is 252542513. The next prime is 252542533. The reversal of 252542524 is 425245252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537 + ... + 22480.

Almost surely, 2252542524 is an apocalyptic number.

It is an amenable number.

252542524 is a deficient number, since it is larger than the sum of its proper divisors (225679444).

252542524 is a wasteful number, since it uses less digits than its factorization.

252542524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23245 (or 23243 counting only the distinct ones).

The product of its digits is 32000, while the sum is 31.

The square root of 252542524 is about 15891.5865790676. The cubic root of 252542524 is about 632.0889122092.

Adding to 252542524 its reverse (425245252), we get a palindrome (677787776).

The spelling of 252542524 in words is "two hundred fifty-two million, five hundred forty-two thousand, five hundred twenty-four".

Divisors: 1 2 4 13 26 52 211 422 844 2743 5486 10972 23017 46034 92068 299221 598442 1196884 4856587 9713174 19426348 63135631 126271262 252542524