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55306040634 = 232131318717923
BaseRepresentation
bin110011100000011111…
…110011010100111010
312021202101001222000100
4303200133303110322
51401231321300014
641223544220230
73665351405655
oct634037632472
9167671058010
1055306040634
11215008aa9a9
12a875a6a676
1352a5132a40
1429692d889c
15168a600009
hexce07f353a

55306040634 has 48 divisors (see below), whose sum is σ = 129064414752. Its totient is φ = 17015003424.

The previous prime is 55306040633. The next prime is 55306040659. The reversal of 55306040634 is 43604060355.

55306040634 is a `hidden beast` number, since 5 + 530 + 60 + 4 + 0 + 63 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (55306040633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3076797 + ... + 3094719.

It is an arithmetic number, because the mean of its divisors is an integer number (2688841974).

Almost surely, 255306040634 is an apocalyptic number.

55306040634 is an abundant number, since it is smaller than the sum of its proper divisors (73758374118).

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

55306040634 is a wasteful number, since it uses less digits than its factorization.

55306040634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31131 (or 31128 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 55306040634 in words is "fifty-five billion, three hundred six million, forty thousand, six hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 13187 17923 26374 35846 39561 53769 79122 107538 118683 161307 171431 232999 237366 322614 342862 465998 514293 698997 1028586 1397994 1542879 2096991 3085758 4193982 236350601 472701202 709051803 1418103606 2127155409 3072557813 4254310818 6145115626 9217673439 18435346878 27653020317 55306040634