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68677634 = 2121328309
BaseRepresentation
bin1000001011111…
…11000000000010
311210020012000002
410011333000002
5120040141014
610452000002
71462515224
oct405770002
9153205002
1068677634
1135848583
121b000002
13112c796c
14919a414
156068dde
hex417f002

68677634 has 8 divisors (see below), whose sum is σ = 103105020. Its totient is φ = 34309296.

The previous prime is 68677621. The next prime is 68677639. The reversal of 68677634 is 43677686.

It can be written as a sum of positive squares in 2 ways, for example, as 61575409 + 7102225 = 7847^2 + 2665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68677639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11729 + ... + 16580.

Almost surely, 268677634 is an apocalyptic number.

68677634 is a deficient number, since it is larger than the sum of its proper divisors (34427386).

68677634 is a wasteful number, since it uses less digits than its factorization.

68677634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29524.

The product of its digits is 1016064, while the sum is 47.

The square root of 68677634 is about 8287.1969929524. The cubic root of 68677634 is about 409.5168490739.

The spelling of 68677634 in words is "sixty-eight million, six hundred seventy-seven thousand, six hundred thirty-four".

Divisors: 1 2 1213 2426 28309 56618 34338817 68677634