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54509995607 = 2371233143263
BaseRepresentation
bin110010110001000011…
…001000011001010111
312012200220011200112012
4302301003020121113
51343114024324412
641012550214435
73636544213664
oct626103103127
9165626150465
1054509995607
1121132520551
12a69335441b
1351a9236092
1428d16bca6b
1516407a9c22
hexcb10c8657

54509995607 has 16 divisors (see below), whose sum is σ = 57929084928. Its totient is φ = 51184647360.

The previous prime is 54509995601. The next prime is 54509995619. The reversal of 54509995607 is 70659990545.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54509995607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54509995601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308858 + ... + 452120.

It is an arithmetic number, because the mean of its divisors is an integer number (3620567808).

Almost surely, 254509995607 is an apocalyptic number.

54509995607 is a deficient number, since it is larger than the sum of its proper divisors (3419089321).

54509995607 is a wasteful number, since it uses less digits than its factorization.

54509995607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143590.

The product of its (nonzero) digits is 15309000, while the sum is 59.

The spelling of 54509995607 in words is "fifty-four billion, five hundred nine million, nine hundred ninety-five thousand, six hundred seven".

Divisors: 1 23 71 233 1633 5359 16543 143263 380489 3295049 10171673 33380279 233948479 767746417 2369999809 54509995607