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54909965523 = 372997192857
BaseRepresentation
bin110011001000111000…
…111001010011010011
312020201202210021002210
4303020320321103103
51344423422344043
641120355043203
73652502002020
oct631070712323
9166652707083
1054909965523
11213182758a6
12a7852a0503
135241066a7a
14292c876547
151665964633
hexcc8e394d3

54909965523 has 32 divisors (see below), whose sum is σ = 86647656960. Its totient is φ = 30263627520.

The previous prime is 54909965521. The next prime is 54909965599. The reversal of 54909965523 is 32556990945.

It is a happy number.

54909965523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54909965523 - 21 = 54909965521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54909965521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544911 + ... + 637767.

It is an arithmetic number, because the mean of its divisors is an integer number (2707739280).

Almost surely, 254909965523 is an apocalyptic number.

54909965523 is a deficient number, since it is larger than the sum of its proper divisors (31737691437).

54909965523 is a wasteful number, since it uses less digits than its factorization.

54909965523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93867.

The product of its (nonzero) digits is 13122000, while the sum is 57.

The spelling of 54909965523 in words is "fifty-four billion, nine hundred nine million, nine hundred sixty-five thousand, five hundred twenty-three".

Divisors: 1 3 7 21 29 87 203 609 971 2913 6797 20391 28159 84477 92857 197113 278571 591339 649999 1949997 2692853 8078559 18849971 56549913 90164147 270492441 631149029 1893447087 2614760263 7844280789 18303321841 54909965523