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68439076 = 22172343759
BaseRepresentation
bin1000001010001…
…00110000100100
311202210001202121
410011010300210
5120010022301
610442515324
71460502556
oct405046044
9152701677
1068439076
11356a5322
121ab05b44
13112431c4
1491374d6
15601d3a1
hex4144c24

68439076 has 24 divisors (see below), whose sum is σ = 132330240. Its totient is φ = 30805632.

The previous prime is 68439073. The next prime is 68439079. The reversal of 68439076 is 67093486.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68439073) and next prime (68439079).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68439073) 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, 20316 + ... + 23443.

It is an arithmetic number, because the mean of its divisors is an integer number (5513760).

Almost surely, 268439076 is an apocalyptic number.

It is an amenable number.

68439076 is a deficient number, since it is larger than the sum of its proper divisors (63891164).

68439076 is a wasteful number, since it uses less digits than its factorization.

68439076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43803 (or 43801 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 68439076 is about 8272.7913064455. The cubic root of 68439076 is about 409.0421343361.

The spelling of 68439076 in words is "sixty-eight million, four hundred thirty-nine thousand, seventy-six".

Divisors: 1 2 4 17 23 34 46 68 92 391 782 1564 43759 87518 175036 743903 1006457 1487806 2012914 2975612 4025828 17109769 34219538 68439076