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61372960 = 2551134871
BaseRepresentation
bin1110101000011…
…1101000100000
311021111001212121
43222013220200
5111202413320
610031234024
71343442625
oct352075040
9137431777
1061372960
1131709460
1218678914
13c93ab7c
14821834c
1555c48aa
hex3a87a20

61372960 has 48 divisors (see below), whose sum is σ = 158179392. Its totient is φ = 22316800.

The previous prime is 61372957. The next prime is 61372991. The reversal of 61372960 is 6927316.

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, 15676 + ... + 19195.

It is an arithmetic number, because the mean of its divisors is an integer number (3295404).

Almost surely, 261372960 is an apocalyptic number.

It is an amenable number.

61372960 is an abundant number, since it is smaller than the sum of its proper divisors (96806432).

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

61372960 is a wasteful number, since it uses less digits than its factorization.

61372960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34897 (or 34889 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 61372960 is about 7834.0896088825. The cubic root of 61372960 is about 394.4503598193.

The spelling of 61372960 in words is "sixty-one million, three hundred seventy-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 34871 69742 139484 174355 278968 348710 383581 557936 697420 767162 1115872 1394840 1534324 1917905 2789680 3068648 3835810 5579360 6137296 7671620 12274592 15343240 30686480 61372960