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57426252 = 22313368117
BaseRepresentation
bin1101101100010…
…0000101001100
311000001120000020
43123010011030
5104200120002
65410502140
71265054322
oct333040514
9130046006
1057426252
112a463214
1217294950
13bb88640
1478abd12
1550952bc
hex36c414c

57426252 has 24 divisors (see below), whose sum is σ = 144302256. Its totient is φ = 17669568.

The previous prime is 57426247. The next prime is 57426283. The reversal of 57426252 is 25262475.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183903 + ... + 184214.

It is an arithmetic number, because the mean of its divisors is an integer number (6012594).

Almost surely, 257426252 is an apocalyptic number.

57426252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57426252 is an abundant number, since it is smaller than the sum of its proper divisors (86876004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57426252 is a wasteful number, since it uses less digits than its factorization.

57426252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368137 (or 368135 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 57426252 is about 7578.0110847108. The cubic root of 57426252 is about 385.8070482752.

The spelling of 57426252 in words is "fifty-seven million, four hundred twenty-six thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 368117 736234 1104351 1472468 2208702 4417404 4785521 9571042 14356563 19142084 28713126 57426252