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56112165 = 3253767503
BaseRepresentation
bin1101011000001…
…1010000100101
310220120210102100
43112003100211
5103331042130
65322402313
71250642214
oct326032045
9126523370
1056112165
112974599a
1216960399
13b818485
14764907b
154dd5c60
hex3583425

56112165 has 48 divisors (see below), whose sum is σ = 101582208. Its totient is φ = 28626048.

The previous prime is 56112163. The next prime is 56112169. The reversal of 56112165 is 56121165.

It is a happy number.

It is not a de Polignac number, because 56112165 - 21 = 56112163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56112163) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 111304 + ... + 111806.

It is an arithmetic number, because the mean of its divisors is an integer number (2116296).

Almost surely, 256112165 is an apocalyptic number.

It is an amenable number.

56112165 is a deficient number, since it is larger than the sum of its proper divisors (45470043).

56112165 is a wasteful number, since it uses less digits than its factorization.

56112165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 615 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 56112165 is about 7490.8053639111. The cubic root of 56112165 is about 382.8414994497.

It can be divided in two parts, 5611 and 2165, that added together give a 5-th power (7776 = 65).

The spelling of 56112165 in words is "fifty-six million, one hundred twelve thousand, one hundred sixty-five".

Divisors: 1 3 5 9 15 37 45 67 111 185 201 333 335 503 555 603 1005 1509 1665 2479 2515 3015 4527 7437 7545 12395 18611 22311 22635 33701 37185 55833 93055 101103 111555 167499 168505 279165 303309 505515 837495 1246937 1516545 3740811 6234685 11222433 18704055 56112165