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53319798097920 = 21136510876571
BaseRepresentation
bin11000001111110011110111…
…01000000000100000000000
320222210022201101222011000000
430013321323220000200000
523442042421303113140
6305222435504000000
714142141205565634
oct1407717350004000
9228708641864000
1053319798097920
1115a97887a89062
125b91898600000
13239a05c987403
14d24998bacdc4
15626e84beaa30
hex307e7ba00800

53319798097920 has 672 divisors, whose sum is σ = 192022344783360. Its totient is φ = 14203370373120.

The previous prime is 53319798097919. The next prime is 53319798097933. The reversal of 53319798097920 is 2979089791335.

53319798097920 is a `hidden beast` number, since 53 + 319 + 7 + 98 + 0 + 97 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 8114408235 + ... + 8114414805.

It is an arithmetic number, because the mean of its divisors is an integer number (285747536880).

Almost surely, 253319798097920 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 53319798097920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96011172391680).

53319798097920 is an abundant number, since it is smaller than the sum of its proper divisors (138702546685440).

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

53319798097920 is an equidigital number, since it uses as much as digits as its factorization.

53319798097920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7703 (or 7668 counting only the distinct ones).

The product of its (nonzero) digits is 231472080, while the sum is 72.

The spelling of 53319798097920 in words is "fifty-three trillion, three hundred nineteen billion, seven hundred ninety-eight million, ninety-seven thousand, nine hundred twenty".