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56053690 = 2571172797
BaseRepresentation
bin1101010111010…
…0111110111010
310220110211012121
43111310332322
5103322204230
65321231454
71250306560
oct325647672
9126424177
1056053690
1129705a70
121693258a
13b7c7984
147631a30
154dc377a
hex3574fba

56053690 has 32 divisors (see below), whose sum is σ = 125794944. Its totient is φ = 17471040.

The previous prime is 56053661. The next prime is 56053727. The reversal of 56053690 is 9635065.

56053690 = T2300 + T2301 + ... + T2320.

It is a super-2 number, since 2×560536902 = 6284032325232200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35629 + ... + 37168.

It is an arithmetic number, because the mean of its divisors is an integer number (3931092).

Almost surely, 256053690 is an apocalyptic number.

56053690 is an abundant number, since it is smaller than the sum of its proper divisors (69741254).

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

56053690 is a wasteful number, since it uses less digits than its factorization.

56053690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72822.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 56053690 is about 7486.9012281451. The cubic root of 56053690 is about 382.7084656852.

The spelling of 56053690 in words is "fifty-six million, fifty-three thousand, six hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 72797 145594 363985 509579 727970 800767 1019158 1601534 2547895 4003835 5095790 5605369 8007670 11210738 28026845 56053690