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64117344200 = 235271313812551
BaseRepresentation
bin111011101101101100…
…010000011111001000
320010111110002120011212
4323231230100133020
52022303020003300
645242145112252
74426613301440
oct735554203710
9203443076155
1064117344200
1125212629768
1210514928688
13607a785a30
143163631120
151a03e56935
hexeedb107c8

64117344200 has 192 divisors, whose sum is σ = 183679077120. Its totient is φ = 20269440000.

The previous prime is 64117344169. The next prime is 64117344223. The reversal of 64117344200 is 244371146.

It is a super-2 number, since 2×641173442002 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25132925 + ... + 25135475.

It is an arithmetic number, because the mean of its divisors is an integer number (956661860).

Almost surely, 264117344200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64117344200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91839538560).

64117344200 is an abundant number, since it is smaller than the sum of its proper divisors (119561732920).

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

64117344200 is a wasteful number, since it uses less digits than its factorization.

64117344200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 64117344200 in words is "sixty-four billion, one hundred seventeen million, three hundred forty-four thousand, two hundred".