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51930960 = 2435216379
BaseRepresentation
bin1100011000011…
…0011101010000
310121201100212220
43012012131100
5101243242320
65053021040
71200256134
oct306063520
9117640786
1051930960
112734a554
1215484780
13a9b32a3
146c7b3c4
15485be40
hex3186750

51930960 has 40 divisors (see below), whose sum is σ = 160986720. Its totient is φ = 13848192.

The previous prime is 51930953. The next prime is 51930997. The reversal of 51930960 is 6903915.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 107950 + ... + 108429.

It is an arithmetic number, because the mean of its divisors is an integer number (4024668).

Almost surely, 251930960 is an apocalyptic number.

It is an amenable number.

51930960 is an abundant number, since it is smaller than the sum of its proper divisors (109055760).

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

51930960 is a wasteful number, since it uses less digits than its factorization.

51930960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216395 (or 216389 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 51930960 is about 7206.3138982423. The cubic root of 51930960 is about 373.0858549766.

The spelling of 51930960 in words is "fifty-one million, nine hundred thirty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 216379 432758 649137 865516 1081895 1298274 1731032 2163790 2596548 3245685 3462064 4327580 5193096 6491370 8655160 10386192 12982740 17310320 25965480 51930960