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68604418 = 21716312379
BaseRepresentation
bin1000001011011…
…01001000000010
311210002110120101
410011231020002
5120030320133
610450233014
71462061611
oct405551002
9153073511
1068604418
11357a8573
121ab8576a
13112a053c
14917b878
15605237d
hex416d202

68604418 has 16 divisors (see below), whose sum is σ = 109637280. Its totient is φ = 32083776.

The previous prime is 68604413. The next prime is 68604427. The reversal of 68604418 is 81440686.

It is not an unprimeable number, because it can be changed into a prime (68604413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (6852330).

Almost surely, 268604418 is an apocalyptic number.

68604418 is a deficient number, since it is larger than the sum of its proper divisors (41032862).

68604418 is a wasteful number, since it uses less digits than its factorization.

68604418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12561.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 68604418 is about 8282.7783985810. The cubic root of 68604418 is about 409.3712711274.

The spelling of 68604418 in words is "sixty-eight million, six hundred four thousand, four hundred eighteen".

Divisors: 1 2 17 34 163 326 2771 5542 12379 24758 210443 420886 2017777 4035554 34302209 68604418