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56016345 = 3571124409
BaseRepresentation
bin1101010110101…
…1110111011001
310220101220222110
43111223313121
5103320010340
65320342533
71250062650
oct325536731
9126356873
1056016345
112968aa00
1216914a49
13b7b3988
147622197
154db7680
hex356bdd9

56016345 has 48 divisors (see below), whose sum is σ = 112613760. Its totient is φ = 23274240.

The previous prime is 56016341. The next prime is 56016347. The reversal of 56016345 is 54361065.

It is not a de Polignac number, because 56016345 - 22 = 56016341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56016341) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10501 + ... + 14909.

It is an arithmetic number, because the mean of its divisors is an integer number (2346120).

Almost surely, 256016345 is an apocalyptic number.

56016345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56016345 is an abundant number, since it is smaller than the sum of its proper divisors (56597415).

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

56016345 is a wasteful number, since it uses less digits than its factorization.

56016345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446 (or 4435 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56016345 is about 7484.4067901204. The cubic root of 56016345 is about 382.6234553862.

The spelling of 56016345 in words is "fifty-six million, sixteen thousand, three hundred forty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 121 165 231 363 385 605 847 1155 1815 2541 4235 4409 12705 13227 22045 30863 48499 66135 92589 145497 154315 242495 339493 462945 533489 727485 1018479 1600467 1697465 2667445 3734423 5092395 8002335 11203269 18672115 56016345