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68912463 = 3376011033
BaseRepresentation
bin1000001101110…
…00010101001111
311210200010010110
410012320111033
5120120144323
610501011103
71464513654
oct406702517
9153603113
1068912463
1135998a54
121b0b3a93
131137a809
14921bc2b
1560b3793
hex41b854f

68912463 has 16 divisors (see below), whose sum is σ = 94615136. Its totient is φ = 44582400.

The previous prime is 68912461. The next prime is 68912471. The reversal of 68912463 is 36421986.

It is not a de Polignac number, because 68912463 - 21 = 68912461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68912461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66195 + ... + 67227.

It is an arithmetic number, because the mean of its divisors is an integer number (5913446).

Almost surely, 268912463 is an apocalyptic number.

68912463 is a deficient number, since it is larger than the sum of its proper divisors (25702673).

68912463 is a wasteful number, since it uses less digits than its factorization.

68912463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its digits is 62208, while the sum is 39.

The square root of 68912463 is about 8301.3530824800. The cubic root of 68912463 is about 409.9830708854.

The spelling of 68912463 in words is "sixty-eight million, nine hundred twelve thousand, four hundred sixty-three".

Divisors: 1 3 37 111 601 1033 1803 3099 22237 38221 66711 114663 620833 1862499 22970821 68912463