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64330616423 = 196914899887
BaseRepresentation
bin111011111010011001…
…110100111001100111
320011001022101220200002
4323322121310321213
52023222114211143
645315244211515
74435113134363
oct737231647147
9204038356602
1064330616423
1125311a572a7
1210574239b9b
1360b2a09108
143183aaa2a3
151a17a335b8
hexefa674e67

64330616423 has 8 divisors (see below), whose sum is σ = 67814449920. Its totient is φ = 60856584120.

The previous prime is 64330616387. The next prime is 64330616431. The reversal of 64330616423 is 32461603346.

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 64330616423 - 214 = 64330600039 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 (64330616443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436815 + ... + 2463072.

It is an arithmetic number, because the mean of its divisors is an integer number (8476806240).

Almost surely, 264330616423 is an apocalyptic number.

64330616423 is a deficient number, since it is larger than the sum of its proper divisors (3483833497).

64330616423 is a wasteful number, since it uses less digits than its factorization.

64330616423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900597.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 64330616423 in words is "sixty-four billion, three hundred thirty million, six hundred sixteen thousand, four hundred twenty-three".

Divisors: 1 19 691 13129 4899887 93097853 3385821917 64330616423