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64361482080 = 25357891371571
BaseRepresentation
bin111011111100001111…
…100100011101100000
320011010110111001101120
4323330033210131200
52023303014411310
645322305532240
74435636366620
oct737417443540
9204113431346
1064361482080
1125328419105
1210582644080
1360b922510c
143187c22880
151a1a5cdb70
hexefc3e4760

64361482080 has 384 divisors, whose sum is σ = 236165207040. Its totient is φ = 14430535680.

The previous prime is 64361482063. The next prime is 64361482093. The reversal of 64361482080 is 8028416346.

It is a super-2 number, since 2×643614820802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40967695 + ... + 40969265.

It is an arithmetic number, because the mean of its divisors is an integer number (615013560).

Almost surely, 264361482080 is an apocalyptic number.

64361482080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64361482080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118082603520).

64361482080 is an abundant number, since it is smaller than the sum of its proper divisors (171803724960).

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

64361482080 is a wasteful number, since it uses less digits than its factorization.

64361482080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 64361482080 in words is "sixty-four billion, three hundred sixty-one million, four hundred eighty-two thousand, eighty".