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68692613 = 1137916477
BaseRepresentation
bin1000001100000…
…10101010000101
311210020221112212
410012002222011
5120041130423
610452153205
71462610003
oct406025205
9153227485
1068692613
1135858860
121b008805
1311301722
1491a1a73
15606d578
hex4182a85

68692613 has 8 divisors (see below), whose sum is σ = 75139680. Its totient is φ = 62279280.

The previous prime is 68692607. The next prime is 68692627. The reversal of 68692613 is 31629686.

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

It is a cyclic number.

It is not a de Polignac number, because 68692613 - 28 = 68692357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68692643) 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, 4070 + ... + 12407.

It is an arithmetic number, because the mean of its divisors is an integer number (9392460).

Almost surely, 268692613 is an apocalyptic number.

It is an amenable number.

68692613 is a deficient number, since it is larger than the sum of its proper divisors (6447067).

68692613 is a wasteful number, since it uses less digits than its factorization.

68692613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16867.

The product of its digits is 93312, while the sum is 41.

The square root of 68692613 is about 8288.1006871297. The cubic root of 68692613 is about 409.5466195955.

The spelling of 68692613 in words is "sixty-eight million, six hundred ninety-two thousand, six hundred thirteen".

Divisors: 1 11 379 4169 16477 181247 6244783 68692613