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68931662 = 2311111801
BaseRepresentation
bin1000001101111…
…01000001001110
311210201002110112
410012331001032
5120121303122
610501240022
71464623642
oct406750116
9153632415
1068931662
1135a01418
121b103012
1311386487
149224c22
1560b92e2
hex41bd04e

68931662 has 8 divisors (see below), whose sum is σ = 106732992. Its totient is φ = 33354000.

The previous prime is 68931661. The next prime is 68931671. The reversal of 68931662 is 26613986.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68931661) 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, 555839 + ... + 555962.

It is an arithmetic number, because the mean of its divisors is an integer number (13341624).

Almost surely, 268931662 is an apocalyptic number.

68931662 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

68931662 is a deficient number, since it is larger than the sum of its proper divisors (37801330).

68931662 is a wasteful number, since it uses less digits than its factorization.

68931662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111834.

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

The square root of 68931662 is about 8302.5093796996. The cubic root of 68931662 is about 410.0211410871.

The spelling of 68931662 in words is "sixty-eight million, nine hundred thirty-one thousand, six hundred sixty-two".

Divisors: 1 2 31 62 1111801 2223602 34465831 68931662