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68369877 = 327596653
BaseRepresentation
bin1000001001100…
…11110111010101
311202122112211200
410010303313111
5120000314002
610441223113
71460064042
oct404636725
9152575750
1068369877
1135658334
121aa91a99
131121a864
14911a1c9
156007b1c
hex4133dd5

68369877 has 6 divisors (see below), whose sum is σ = 98756502. Its totient is φ = 45579912.

The previous prime is 68369857. The next prime is 68369879. The reversal of 68369877 is 77896386.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 17089956 = 7161^2 + 4134^2 .

It is not a de Polignac number, because 68369877 - 26 = 68369813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68369879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3798318 + ... + 3798335.

It is an arithmetic number, because the mean of its divisors is an integer number (16459417).

Almost surely, 268369877 is an apocalyptic number.

It is an amenable number.

68369877 is a deficient number, since it is larger than the sum of its proper divisors (30386625).

68369877 is a wasteful number, since it uses less digits than its factorization.

68369877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596659 (or 7596656 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 68369877 is about 8268.6079239495. The cubic root of 68369877 is about 408.9042265134.

The spelling of 68369877 in words is "sixty-eight million, three hundred sixty-nine thousand, eight hundred seventy-seven".

Divisors: 1 3 9 7596653 22789959 68369877