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68413355 = 5173172539
BaseRepresentation
bin1000001001111…
…10011110101011
311202201202110222
410010332132223
5120003211410
610442200255
71460334563
oct404763653
9152652428
1068413355
1135687a6a
121aab308b
131123459a
14912bda3
156015955
hex413e7ab

68413355 has 16 divisors (see below), whose sum is σ = 87233760. Its totient is φ = 51328512.

The previous prime is 68413307. The next prime is 68413363. The reversal of 68413355 is 55331486.

It is a cyclic number.

It is not a de Polignac number, because 68413355 - 214 = 68396971 is a prime.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25676 + ... + 28214.

It is an arithmetic number, because the mean of its divisors is an integer number (5452110).

Almost surely, 268413355 is an apocalyptic number.

68413355 is a deficient number, since it is larger than the sum of its proper divisors (18820405).

68413355 is a wasteful number, since it uses less digits than its factorization.

68413355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878.

The product of its digits is 43200, while the sum is 35.

The square root of 68413355 is about 8271.2366064573. The cubic root of 68413355 is about 408.9908853926.

The spelling of 68413355 in words is "sixty-eight million, four hundred thirteen thousand, three hundred fifty-five".

Divisors: 1 5 17 85 317 1585 2539 5389 12695 26945 43163 215815 804863 4024315 13682671 68413355