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64171380014 = 2737123882973
BaseRepresentation
bin111011110000111010…
…011000110100101110
320010122012202212101022
4323300322120310232
52022410333130024
645251355214142
74431140505320
oct736072306456
9203565685338
1064171380014
1125240086665
121052aa47352
136088a250a1
14316a899610
151a08a7c35e
hexef0e98d2e

64171380014 has 16 divisors (see below), whose sum is σ = 112981272288. Its totient is φ = 26758721952.

The previous prime is 64171380011. The next prime is 64171380029. The reversal of 64171380014 is 41008317146.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64171380011) 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, 61940969 + ... + 61942004.

It is an arithmetic number, because the mean of its divisors is an integer number (7061329518).

Almost surely, 264171380014 is an apocalyptic number.

64171380014 is a deficient number, since it is larger than the sum of its proper divisors (48809892274).

64171380014 is a wasteful number, since it uses less digits than its factorization.

64171380014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123883019.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 64171380014 in words is "sixty-four billion, one hundred seventy-one million, three hundred eighty thousand, fourteen".

Divisors: 1 2 7 14 37 74 259 518 123882973 247765946 867180811 1734361622 4583670001 9167340002 32085690007 64171380014