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56190105 = 355103449
BaseRepresentation
bin1101011001011…
…0010010011001
310220201202100000
43112112102121
5103341040410
65324203213
71251415356
oct326262231
9126652300
1056190105
1129799504
1216999509
13b844aaa
14766962d
154deddc0
hex3596499

56190105 has 48 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 29611008.

The previous prime is 56190103. The next prime is 56190109. The reversal of 56190105 is 50109165.

56190105 is a `hidden beast` number, since 561 + 90 + 10 + 5 = 666.

56190105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56190105 - 21 = 56190103 is a prime.

It is a super-2 number, since 2×561901052 = 6314655799822050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (56190103) 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 47 ways as a sum of consecutive naturals, for example, 124921 + ... + 125369.

It is an arithmetic number, because the mean of its divisors is an integer number (2129400).

Almost surely, 256190105 is an apocalyptic number.

It is an amenable number.

56190105 is a deficient number, since it is larger than the sum of its proper divisors (46021095).

56190105 is a wasteful number, since it uses less digits than its factorization.

56190105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 56190105 is about 7496.0059364971. The cubic root of 56190105 is about 383.0186735187.

The spelling of 56190105 in words is "fifty-six million, one hundred ninety thousand, one hundred five".

Divisors: 1 3 5 9 15 27 45 81 103 135 243 309 405 449 515 927 1215 1347 1545 2245 2781 4041 4635 6735 8343 12123 13905 20205 25029 36369 41715 46247 60615 109107 125145 138741 181845 231235 416223 545535 693705 1248669 2081115 3746007 6243345 11238021 18730035 56190105