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68423568 = 2431425491
BaseRepresentation
bin1000001010000…
…00111110010000
311202202021111020
410011000332100
5120004023233
610442315440
71460406423
oct405007620
9152667436
1068423568
1135694704
121aab8b80
1311239125
1491319ba
1560189b3
hex4140f90

68423568 has 20 divisors (see below), whose sum is σ = 176761008. Its totient is φ = 22807840.

The previous prime is 68423533. The next prime is 68423569. The reversal of 68423568 is 86532486.

It is not an unprimeable number, because it can be changed into a prime (68423569) 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, 712698 + ... + 712793.

Almost surely, 268423568 is an apocalyptic number.

It is an amenable number.

68423568 is an abundant number, since it is smaller than the sum of its proper divisors (108337440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68423568 is a wasteful number, since it uses less digits than its factorization.

68423568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425502 (or 1425496 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 68423568 is about 8271.8539638947. The cubic root of 68423568 is about 409.0112362733.

The spelling of 68423568 in words is "sixty-eight million, four hundred twenty-three thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 1425491 2850982 4276473 5701964 8552946 11403928 17105892 22807856 34211784 68423568