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68604023 = 312213033
BaseRepresentation
bin1000001011011…
…01000001110111
311210002110000202
410011231001313
5120030312043
610450231115
71462060505
oct405550167
9153073022
1068604023
11357a8244
121ab8549b
13112a02c7
14917b675
1560521b8
hex416d077

68604023 has 4 divisors (see below), whose sum is σ = 70817088. Its totient is φ = 66390960.

The previous prime is 68604007. The next prime is 68604037. The reversal of 68604023 is 32040686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68604023 - 24 = 68604007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68604083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106486 + ... + 1106547.

It is an arithmetic number, because the mean of its divisors is an integer number (17704272).

Almost surely, 268604023 is an apocalyptic number.

68604023 is a deficient number, since it is larger than the sum of its proper divisors (2213065).

68604023 is a wasteful number, since it uses less digits than its factorization.

68604023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213064.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 68604023 is about 8282.7545538909. The cubic root of 68604023 is about 409.3704854542.

The spelling of 68604023 in words is "sixty-eight million, six hundred four thousand, twenty-three".

Divisors: 1 31 2213033 68604023