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51132452 = 2272962971
BaseRepresentation
bin1100001100001…
…1100000100100
310120012210112112
43003003200210
5101042214302
65023540152
71160422130
oct303034044
9116183475
1051132452
1126954628
121515a658
13a7939b7
146b103c0
154750552
hex30c3824

51132452 has 24 divisors (see below), whose sum is σ = 105792960. Its totient is φ = 21157920.

The previous prime is 51132451. The next prime is 51132493. The reversal of 51132452 is 25423115.

It is a super-2 number, since 2×511324522 = 5229055295064608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51132451) 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, 30674 + ... + 32297.

It is an arithmetic number, because the mean of its divisors is an integer number (4408040).

Almost surely, 251132452 is an apocalyptic number.

It is an amenable number.

51132452 is an abundant number, since it is smaller than the sum of its proper divisors (54660508).

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

51132452 is a wasteful number, since it uses less digits than its factorization.

51132452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63011 (or 63009 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 51132452 is about 7150.6959101894. The cubic root of 51132452 is about 371.1637379268.

Adding to 51132452 its reverse (25423115), we get a palindrome (76555567).

The spelling of 51132452 in words is "fifty-one million, one hundred thirty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 62971 125942 251884 440797 881594 1763188 1826159 3652318 7304636 12783113 25566226 51132452