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50979980 = 22522911131
BaseRepresentation
bin1100001001111…
…0010010001100
310112221001101102
43002132102030
5101022324410
65020402232
71156215452
oct302362214
9115831342
1050979980
1126860017
12150a6378
13a73c48c
146ab09d2
1547202a5
hex309e48c

50979980 has 24 divisors (see below), whose sum is σ = 107535120. Its totient is φ = 20301120.

The previous prime is 50979979. The next prime is 50980003. The reversal of 50979980 is 8997905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 10145.

It is an arithmetic number, because the mean of its divisors is an integer number (4480630).

Almost surely, 250979980 is an apocalyptic number.

It is an amenable number.

50979980 is an abundant number, since it is smaller than the sum of its proper divisors (56555140).

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

50979980 is a wasteful number, since it uses less digits than its factorization.

50979980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11369 (or 11367 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 50979980 is about 7140.0266105947. The cubic root of 50979980 is about 370.7944458935.

The spelling of 50979980 in words is "fifty million, nine hundred seventy-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 229 458 916 1145 2290 4580 11131 22262 44524 55655 111310 222620 2548999 5097998 10195996 12744995 25489990 50979980