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56975930 = 25113713999
BaseRepresentation
bin1101100101011…
…0001000111010
310222012200021122
43121112020322
5104041212210
65353105242
71261200404
oct331261072
9128180248
1056975930
112a185950
12170b8222
13ba5b68b
1477d1b74
155006b55
hex365623a

56975930 has 32 divisors (see below), whose sum is σ = 114912000. Its totient is φ = 20157120.

The previous prime is 56975911. The next prime is 56975939. The reversal of 56975930 is 3957965.

56975930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56975939) 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 15 ways as a sum of consecutive naturals, for example, 2930 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 256975930 is an apocalyptic number.

56975930 is an abundant number, since it is smaller than the sum of its proper divisors (57936070).

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

56975930 is a wasteful number, since it uses less digits than its factorization.

56975930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14054.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 56975930 is about 7548.2401922567. The cubic root of 56975930 is about 384.7959339087.

The spelling of 56975930 in words is "fifty-six million, nine hundred seventy-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 37 55 74 110 185 370 407 814 2035 4070 13999 27998 69995 139990 153989 307978 517963 769945 1035926 1539890 2589815 5179630 5697593 11395186 28487965 56975930