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68067340013 = 611663670991
BaseRepresentation
bin111111011001001000…
…010010111011101101
320111200201201010210002
4333121020102323231
52103400214340023
651134131154045
74626525562301
oct773110227355
9214621633702
1068067340013
112695a26a012
1211237745925
136559c1a16a
14341a089d01
151b85b00b28
hexfd9212eed

68067340013 has 8 divisors (see below), whose sum is σ = 69224902656. Its totient is φ = 66911122800.

The previous prime is 68067340007. The next prime is 68067340027. The reversal of 68067340013 is 31004376086.

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 68067340013 - 216 = 68067274477 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 (68067340063) 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, 234053 + ... + 436938.

It is an arithmetic number, because the mean of its divisors is an integer number (8653112832).

Almost surely, 268067340013 is an apocalyptic number.

It is an amenable number.

68067340013 is a deficient number, since it is larger than the sum of its proper divisors (1157562643).

68067340013 is a wasteful number, since it uses less digits than its factorization.

68067340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672715.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 68067340013 in words is "sixty-eight billion, sixty-seven million, three hundred forty thousand, thirteen".

Divisors: 1 61 1663 101443 670991 40930451 1115858033 68067340013