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68660014 = 2236124469
BaseRepresentation
bin1000001011110…
…10101100101110
311210012021211111
410011322230232
5120034110024
610451342234
71462412653
oct405725456
9153167744
1068660014
1135836315
121abb197a
13112bc937
149193c2a
156063a94
hex417ab2e

68660014 has 16 divisors (see below), whose sum is σ = 109234080. Its totient is φ = 32297760.

The previous prime is 68659999. The next prime is 68660017. The reversal of 68660014 is 41006686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68660017) 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, 9429 + ... + 15040.

It is an arithmetic number, because the mean of its divisors is an integer number (6827130).

Almost surely, 268660014 is an apocalyptic number.

68660014 is a deficient number, since it is larger than the sum of its proper divisors (40574066).

68660014 is a wasteful number, since it uses less digits than its factorization.

68660014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24555.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 68660014 is about 8286.1338391315. The cubic root of 68660014 is about 409.4818240658.

The spelling of 68660014 in words is "sixty-eight million, six hundred sixty thousand, fourteen".

Divisors: 1 2 23 46 61 122 1403 2806 24469 48938 562787 1125574 1492609 2985218 34330007 68660014