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50919930400 = 2552312107619
BaseRepresentation
bin101111011011000100…
…000111101000100000
311212102200211110220011
4233123010013220200
51313241000233100
635220422454304
73451562160403
oct573304075040
9155380743804
1050919930400
111a65aa78409
129a50b94394
134a56523c41
142670997d3a
1514d050bbba
hexbdb107a20

50919930400 has 216 divisors, whose sum is σ = 129857469840. Its totient is φ = 19495180800.

The previous prime is 50919930379. The next prime is 50919930407. The reversal of 50919930400 is 403991905.

It is a super-3 number, since 3×509199304003 (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (50919930407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82261291 + ... + 82261909.

It is an arithmetic number, because the mean of its divisors is an integer number (601191990).

Almost surely, 250919930400 is an apocalyptic number.

50919930400 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 50919930400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64928734920).

50919930400 is an abundant number, since it is smaller than the sum of its proper divisors (78937539440).

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

50919930400 is a wasteful number, since it uses less digits than its factorization.

50919930400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 40.

The spelling of 50919930400 in words is "fifty billion, nine hundred nineteen million, nine hundred thirty thousand, four hundred".