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50631680 = 2105112931
BaseRepresentation
bin1100000100100…
…1010000000000
310112021100121102
43001021100000
5100430203210
65005113532
71153235141
oct301112000
9115240542
1050631680
1126642370
1214b588a8
13a649a98
146a1dac8
1546a1ea5
hex3049400

50631680 has 176 divisors, whose sum is σ = 141488640. Its totient is φ = 17203200.

The previous prime is 50631667. The next prime is 50631697. The reversal of 50631680 is 8613605.

It is a tau number, because it is divible by the number of its divisors (176).

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633265 + ... + 1633295.

Almost surely, 250631680 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 50631680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70744320).

50631680 is an abundant number, since it is smaller than the sum of its proper divisors (90856960).

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

50631680 is a wasteful number, since it uses less digits than its factorization.

50631680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 50631680 is about 7115.5941424452. The cubic root of 50631680 is about 369.9480813442.

The spelling of 50631680 in words is "fifty million, six hundred thirty-one thousand, six hundred eighty".