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68342164 = 22111981749
BaseRepresentation
bin1000001001011…
…01000110010100
311202121010211021
410010231012110
5114443422124
610440450524
71456620202
oct404550624
9152533737
1068342164
1135639530
121aa79a44
131120b067
149110072
155eee7e4
hex412d194

68342164 has 24 divisors (see below), whose sum is σ = 137340000. Its totient is φ = 29429280.

The previous prime is 68342111. The next prime is 68342167. The reversal of 68342164 is 46124386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68342167) 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, 40039 + ... + 41710.

It is an arithmetic number, because the mean of its divisors is an integer number (5722500).

Almost surely, 268342164 is an apocalyptic number.

It is an amenable number.

68342164 is an abundant number, since it is smaller than the sum of its proper divisors (68997836).

68342164 is a wasteful number, since it uses less digits than its factorization.

68342164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81783 (or 81781 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 68342164 is about 8266.9319581088. The cubic root of 68342164 is about 408.8489707254.

It can be divided in two parts, 6834 and 2164, that added together give a palindrome (8998).

The spelling of 68342164 in words is "sixty-eight million, three hundred forty-two thousand, one hundred sixty-four".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 81749 163498 326996 899239 1553231 1798478 3106462 3596956 6212924 17085541 34171082 68342164