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54492118540 = 2255351407659
BaseRepresentation
bin110010101111111110…
…111011111000001100
312012122122112102210121
4302233332323320030
51343044440243130
641011111114324
73636236236156
oct625776737014
9165578472717
1054492118540
1121123420212
12a6893729a4
1351a5617032
1428cd187ad6
15163de27d7a
hexcaffbbe0c

54492118540 has 24 divisors (see below), whose sum is σ = 116592572880. Its totient is φ = 21385585728.

The previous prime is 54492118523. The next prime is 54492118543. The reversal of 54492118540 is 4581129445.

It is not an unprimeable number, because it can be changed into a prime (54492118543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25702770 + ... + 25704889.

It is an arithmetic number, because the mean of its divisors is an integer number (4858023870).

Almost surely, 254492118540 is an apocalyptic number.

It is an amenable number.

54492118540 is an abundant number, since it is smaller than the sum of its proper divisors (62100454340).

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

54492118540 is a wasteful number, since it uses less digits than its factorization.

54492118540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51407721 (or 51407719 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 54492118540 in words is "fifty-four billion, four hundred ninety-two million, one hundred eighteen thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 51407659 102815318 205630636 257038295 514076590 1028153180 2724605927 5449211854 10898423708 13623029635 27246059270 54492118540