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64057428000 = 25325317247131
BaseRepresentation
bin111011101010000111…
…101100100000100000
320010100021100111121100
4323222013230200200
52022142200144000
645232204554400
74425255103566
oct735207544040
9203307314540
1064057428000
1125191825845
12104b8852a00
13606b237c67
1431596b5a36
1519eda6da00
hexeea1ec820

64057428000 has 864 divisors, whose sum is σ = 248520400128. Its totient is φ = 15614976000.

The previous prime is 64057427999. The next prime is 64057428007. The reversal of 64057428000 is 82475046.

64057428000 is a `hidden beast` number, since 6 + 4 + 0 + 574 + 2 + 80 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64057428007) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 488987935 + ... + 488988065.

It is an arithmetic number, because the mean of its divisors is an integer number (287639352).

Almost surely, 264057428000 is an apocalyptic number.

64057428000 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 64057428000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124260200064).

64057428000 is an abundant number, since it is smaller than the sum of its proper divisors (184462972128).

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

64057428000 is a wasteful number, since it uses less digits than its factorization.

64057428000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 64057428000 in words is "sixty-four billion, fifty-seven million, four hundred twenty-eight thousand".