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53006928840 = 233251923347971
BaseRepresentation
bin110001010111011101…
…011000101111001000
312001211010212222112200
4301113131120233020
51332024233210330
640203454240200
73554363314065
oct612735305710
9161733788480
1053006928840
1120531036208
12a333ab6060
134cc9a0bc68
1427cbc1bc6c
1515a3856a60
hexc57758bc8

53006928840 has 384 divisors, whose sum is σ = 189964569600. Its totient is φ = 12758929920.

The previous prime is 53006928781. The next prime is 53006928869. The reversal of 53006928840 is 4882960035.

53006928840 is a `hidden beast` number, since 5 + 300 + 69 + 288 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54589555 + ... + 54590525.

It is an arithmetic number, because the mean of its divisors is an integer number (494699400).

Almost surely, 253006928840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53006928840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94982284800).

53006928840 is an abundant number, since it is smaller than the sum of its proper divisors (136957640760).

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

53006928840 is a wasteful number, since it uses less digits than its factorization.

53006928840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 53006928840 in words is "fifty-three billion, six million, nine hundred twenty-eight thousand, eight hundred forty".