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68465719 = 766114797
BaseRepresentation
bin1000001010010…
…11010000110111
311202211102022101
410011023100313
5120011400334
610443242531
71460643340
oct405132067
9152742271
1068465719
1135713343
121ab19447
131125237a
1491430c7
156026214
hex414b437

68465719 has 8 divisors (see below), whose sum is σ = 78370208. Its totient is φ = 58592160.

The previous prime is 68465713. The next prime is 68465731. The reversal of 68465719 is 91756486.

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 68465719 - 211 = 68463671 is a prime.

It is a super-2 number, since 2×684657192 = 9375109356373922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68465713) 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, 2772 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (9796276).

Almost surely, 268465719 is an apocalyptic number.

68465719 is a deficient number, since it is larger than the sum of its proper divisors (9904489).

68465719 is a wasteful number, since it uses less digits than its factorization.

68465719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15465.

The product of its digits is 362880, while the sum is 46.

The square root of 68465719 is about 8274.4014285022. The cubic root of 68465719 is about 409.0952068220.

The spelling of 68465719 in words is "sixty-eight million, four hundred sixty-five thousand, seven hundred nineteen".

Divisors: 1 7 661 4627 14797 103579 9780817 68465719