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50985680 = 245637321
BaseRepresentation
bin1100001001111…
…1101011010000
310112221100012112
43002133223100
5101023020210
65020444452
71156241204
oct302375320
9115840175
1050985680
1126864329
12150a9728
13a741c55
146ab2b04
154721d05
hex309fad0

50985680 has 20 divisors (see below), whose sum is σ = 118541892. Its totient is φ = 20394240.

The previous prime is 50985679. The next prime is 50985689. The reversal of 50985680 is 8658905.

50985680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5125696 + 45859984 = 2264^2 + 6772^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50985689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318581 + ... + 318740.

Almost surely, 250985680 is an apocalyptic number.

It is an amenable number.

50985680 is an abundant number, since it is smaller than the sum of its proper divisors (67556212).

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

50985680 is a wasteful number, since it uses less digits than its factorization.

50985680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637334 (or 637328 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 50985680 is about 7140.4257576142. The cubic root of 50985680 is about 370.8082647139.

The spelling of 50985680 in words is "fifty million, nine hundred eighty-five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 637321 1274642 2549284 3186605 5098568 6373210 10197136 12746420 25492840 50985680