Base | Representation |
---|---|
bin | 111100011111111101… |
… | …010100010001000000 |
3 | 20012200012222022012100 |
4 | 330133331110101000 |
5 | 2031014413130203 |
6 | 45501552430400 |
7 | 4456533433440 |
oct | 743775242100 |
9 | 205605868170 |
10 | 64960676928 |
11 | 25605677064 |
12 | 1070b248400 |
13 | 61833cb394 |
14 | 320363a120 |
15 | 1a52edcea3 |
hex | f1ff54440 |
64960676928 has 84 divisors (see below), whose sum is σ = 212797786240. Its totient is φ = 18560192256.
The previous prime is 64960676923. The next prime is 64960676993. The reversal of 64960676928 is 82967606946.
64960676928 is a `hidden beast` number, since 6 + 496 + 0 + 67 + 69 + 28 = 666.
64960676928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (84).
It is a Harshad number since it is a multiple of its sum of digits (63).
It is not an unprimeable number, because it can be changed into a prime (64960676923) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8051608 + ... + 8059671.
Almost surely, 264960676928 is an apocalyptic number.
It is an amenable number.
64960676928 is an abundant number, since it is smaller than the sum of its proper divisors (147837109312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64960676928 is a wasteful number, since it uses less digits than its factorization.
64960676928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16111304 (or 16111291 counting only the distinct ones).
The product of its (nonzero) digits is 47029248, while the sum is 63.
The spelling of 64960676928 in words is "sixty-four billion, nine hundred sixty million, six hundred seventy-six thousand, nine hundred twenty-eight".
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