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53964216920 = 2351518934473
BaseRepresentation
bin110010010000100001…
…001001101001011000
312011021212012020220202
4302100201021221120
51341004314420140
640442452241332
73620166163325
oct622041115130
9164255166822
1053964216920
1120982436989
12a560610248
135120143103
14287d00bb4c
15160c8ec915
hexc90849a58

53964216920 has 32 divisors (see below), whose sum is σ = 122223604320. Its totient is φ = 21442732800.

The previous prime is 53964216853. The next prime is 53964216947. The reversal of 53964216920 is 2961246935.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4461197 + ... + 4473276.

It is an arithmetic number, because the mean of its divisors is an integer number (3819487635).

Almost surely, 253964216920 is an apocalyptic number.

It is an amenable number.

53964216920 is an abundant number, since it is smaller than the sum of its proper divisors (68259387400).

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

53964216920 is a wasteful number, since it uses less digits than its factorization.

53964216920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8934635 (or 8934631 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 53964216920 in words is "fifty-three billion, nine hundred sixty-four million, two hundred sixteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 151 302 604 755 1208 1510 3020 6040 8934473 17868946 35737892 44672365 71475784 89344730 178689460 357378920 1349105423 2698210846 5396421692 6745527115 10792843384 13491054230 26982108460 53964216920