Search a number
-
+
50511900672 = 21235192671
BaseRepresentation
bin101111000010101111…
…100111000000000000
311211101021001102100000
4233002233213000000
51311422021310142
635112125200000
73435506033352
oct570257470000
9154337042300
1050511900672
111a470718662
129958400000
1349bcb3082c
1426327030d2
1514a97ae14c
hexbc2be7000

50511900672 has 312 divisors, whose sum is σ = 159332642560. Its totient is φ = 15945154560.

The previous prime is 50511900629. The next prime is 50511900707. The reversal of 50511900672 is 27600911505.

50511900672 is a `hidden beast` number, since 50 + 511 + 90 + 0 + 6 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18909897 + ... + 18912567.

Almost surely, 250511900672 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 50511900672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79666321280).

50511900672 is an abundant number, since it is smaller than the sum of its proper divisors (108820741888).

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

50511900672 is an equidigital number, since it uses as much as digits as its factorization.

50511900672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The spelling of 50511900672 in words is "fifty billion, five hundred eleven million, nine hundred thousand, six hundred seventy-two".