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50979072000 = 211353411619
BaseRepresentation
bin101111011110100101…
…101110100000000000
311212120211010011220210
4233132211232200000
51313401120301000
635230334234120
73453210651033
oct573645564000
9155524104823
1050979072000
111a6903a236a
129a68955940
134a6586027c
14267879101a
1514d57e0350
hexbde96e800

50979072000 has 384 divisors, whose sum is σ = 173861251200. Its totient is φ = 13254656000.

The previous prime is 50979071989. The next prime is 50979072017. The reversal of 50979072000 is 27097905.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 50979072000.

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 31 ways as a sum of consecutive naturals, for example, 31487191 + ... + 31488809.

It is an arithmetic number, because the mean of its divisors is an integer number (452763675).

Almost surely, 250979072000 is an apocalyptic number.

50979072000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50979072000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86930625600).

50979072000 is an abundant number, since it is smaller than the sum of its proper divisors (122882179200).

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

50979072000 is a wasteful number, since it uses less digits than its factorization.

50979072000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 39.

The spelling of 50979072000 in words is "fifty billion, nine hundred seventy-nine million, seventy-two thousand".