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51262056 = 2332711973
BaseRepresentation
bin1100001110001…
…1001001101000
310120110101022200
43003203021220
5101110341211
65030420200
71161502026
oct303431150
9116411280
1051262056
1126a32a3a
1215201660
13a80a9a1
146b45716
154778b56
hex30e3268

51262056 has 24 divisors (see below), whose sum is σ = 138834930. Its totient is φ = 17087328.

The previous prime is 51262051. The next prime is 51262069. The reversal of 51262056 is 65026215.

It can be written as a sum of positive squares in only one way, i.e., 37822500 + 13439556 = 6150^2 + 3666^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (51262051) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 355915 + ... + 356058.

Almost surely, 251262056 is an apocalyptic number.

It is an amenable number.

51262056 is an abundant number, since it is smaller than the sum of its proper divisors (87572874).

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

51262056 is a wasteful number, since it uses less digits than its factorization.

51262056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711985 (or 711978 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51262056 is about 7159.7525096891. The cubic root of 51262056 is about 371.4770661392.

The spelling of 51262056 in words is "fifty-one million, two hundred sixty-two thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 711973 1423946 2135919 2847892 4271838 5695784 6407757 8543676 12815514 17087352 25631028 51262056