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64420114623 = 337881658753
BaseRepresentation
bin111011111111101111…
…001111000010111111
320011021112210220010020
4323333233033002333
52023413022131443
645332202343223
74440250640154
oct737757170277
9204245726106
1064420114623
1125358525657
121059a1bab13
1360c8413827
14319192622b
151a20811583
hexeffbcf0bf

64420114623 has 16 divisors (see below), whose sum is σ = 88315196256. Its totient is φ = 41738526720.

The previous prime is 64420114607. The next prime is 64420114667. The reversal of 64420114623 is 32641102446.

It is a happy number.

It is not a de Polignac number, because 64420114623 - 24 = 64420114607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420112623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231586 + ... + 427167.

It is an arithmetic number, because the mean of its divisors is an integer number (5519699766).

Almost surely, 264420114623 is an apocalyptic number.

64420114623 is a deficient number, since it is larger than the sum of its proper divisors (23895081633).

64420114623 is a wasteful number, since it uses less digits than its factorization.

64420114623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659674.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 64420114623 in words is "sixty-four billion, four hundred twenty million, one hundred fourteen thousand, six hundred twenty-three".

Divisors: 1 3 37 111 881 2643 32597 97791 658753 1976259 24373861 73121583 580361393 1741084179 21473371541 64420114623