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64177008342 = 2382312996559
BaseRepresentation
bin111011110001001111…
…110110111011010110
320010122121100210222220
4323301033312323112
52022413303231332
645252120003210
74431236366406
oct736117667326
9203577323886
1064177008342
1125243280277
1210530900506
136089c45b65
14316b522806
151a092ded2c
hexef13f6ed6

64177008342 has 16 divisors (see below), whose sum is σ = 128509985280. Its totient is φ = 21366341352.

The previous prime is 64177008341. The next prime is 64177008349. The reversal of 64177008342 is 24380077146.

It is a junction number, because it is equal to n+sod(n) for n = 64177008294 and 64177008303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64177008341) 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, 6493342 + ... + 6503217.

It is an arithmetic number, because the mean of its divisors is an integer number (8031874080).

Almost surely, 264177008342 is an apocalyptic number.

64177008342 is an abundant number, since it is smaller than the sum of its proper divisors (64332976938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64177008342 is a wasteful number, since it uses less digits than its factorization.

64177008342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12997387.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 64177008342 in words is "sixty-four billion, one hundred seventy-seven million, eight thousand, three hundred forty-two".

Divisors: 1 2 3 6 823 1646 2469 4938 12996559 25993118 38989677 77979354 10696168057 21392336114 32088504171 64177008342