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68618675 = 522744747
BaseRepresentation
bin1000001011100…
…00100110110011
311210010012010102
410011300212303
5120031244200
610450423015
71462151306
oct405604663
9153105112
1068618675
1135808254
121ab91a6b
13112a6b88
149182b3d
1560566d5
hex41709b3

68618675 has 6 divisors (see below), whose sum is σ = 85087188. Its totient is φ = 54894920.

The previous prime is 68618659. The next prime is 68618687. The reversal of 68618675 is 57681686.

It is not a de Polignac number, because 68618675 - 24 = 68618659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1372349 + ... + 1372398.

It is an arithmetic number, because the mean of its divisors is an integer number (14181198).

Almost surely, 268618675 is an apocalyptic number.

68618675 is a deficient number, since it is larger than the sum of its proper divisors (16468513).

68618675 is a wasteful number, since it uses less digits than its factorization.

68618675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744757 (or 2744752 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 68618675 is about 8283.6389950311. The cubic root of 68618675 is about 409.3996269395.

The spelling of 68618675 in words is "sixty-eight million, six hundred eighteen thousand, six hundred seventy-five".

Divisors: 1 5 25 2744747 13723735 68618675