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64497835080 = 233257223114773
BaseRepresentation
bin111100000100010111…
…101101110001001000
320011110222001111112200
4330010113231301020
52024042421210310
645344020240200
74442213360340
oct740427556110
9204428044480
1064497835080
112539838a138
1210600240060
13610b556473
14319bd97d20
151a275649c0
hexf045edc48

64497835080 has 192 divisors, whose sum is σ = 240639759360. Its totient is φ = 14676125184.

The previous prime is 64497835067. The next prime is 64497835093. The reversal of 64497835080 is 8053879446.

64497835080 is a `hidden beast` number, since 6 + 44 + 97 + 8 + 3 + 508 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (64497835067) and next prime (64497835093).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504574 + ... + 619346.

It is an arithmetic number, because the mean of its divisors is an integer number (1253332080).

Almost surely, 264497835080 is an apocalyptic number.

64497835080 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 64497835080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120319879680).

64497835080 is an abundant number, since it is smaller than the sum of its proper divisors (176141924280).

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

64497835080 is a wasteful number, since it uses less digits than its factorization.

64497835080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115020 (or 115013 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 64497835080 in words is "sixty-four billion, four hundred ninety-seven million, eight hundred thirty-five thousand, eighty".