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51316468 = 2277192549
BaseRepresentation
bin1100001111000…
…0011011110100
310120120010221221
43003300123310
5101114111333
65031520124
71162116460
oct303603364
9116503857
1051316468
1126a6a905
1215229044
13a829698
146b5b4a0
154789d2d
hex30f06f4

51316468 has 24 divisors (see below), whose sum is σ = 102816000. Its totient is φ = 21953568.

The previous prime is 51316453. The next prime is 51316469. The reversal of 51316468 is 86461315.

It is a happy number.

51316468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51316469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18858 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 251316468 is an apocalyptic number.

It is an amenable number.

51316468 is an abundant number, since it is smaller than the sum of its proper divisors (51499532).

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

51316468 is a wasteful number, since it uses less digits than its factorization.

51316468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279 (or 3277 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 51316468 is about 7163.5513539026. The cubic root of 51316468 is about 371.6084541762.

The spelling of 51316468 in words is "fifty-one million, three hundred sixteen thousand, four hundred sixty-eight".

Divisors: 1 2 4 7 14 28 719 1438 2549 2876 5033 5098 10066 10196 17843 20132 35686 71372 1832731 3665462 7330924 12829117 25658234 51316468