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54475817538 = 2323874145161
BaseRepresentation
bin110010101111000000…
…110000001001000010
312012121111212021000210
4302233000300021002
51343031302130123
641005325454550
73635650544322
oct625700601102
9165544767023
1054475817538
11211151a700a
12a683a11456
1351a212a47c
1428cad43282
15163c7a7e93
hexcaf030242

54475817538 has 32 divisors (see below), whose sum is σ = 113704186752. Its totient is φ = 17366729600.

The previous prime is 54475817537. The next prime is 54475817581. The reversal of 54475817538 is 83571857445.

It is a super-2 number, since 2×544758175382 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54475817537) 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 15 ways as a sum of consecutive naturals, for example, 1183678 + ... + 1228838.

It is an arithmetic number, because the mean of its divisors is an integer number (3553255836).

Almost surely, 254475817538 is an apocalyptic number.

54475817538 is an abundant number, since it is smaller than the sum of its proper divisors (59228369214).

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

54475817538 is a wasteful number, since it uses less digits than its factorization.

54475817538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53930.

The product of its digits is 18816000, while the sum is 57.

The spelling of 54475817538 in words is "fifty-four billion, four hundred seventy-five million, eight hundred seventeen thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 23 46 69 138 8741 17482 26223 45161 52446 90322 135483 201043 270966 402086 603129 1038703 1206258 2077406 3116109 6232218 394752301 789504602 1184256903 2368513806 9079302923 18158605846 27237908769 54475817538