Base | Representation |
---|---|
bin | 111011111111000010… |
… | …100110011101110110 |
3 | 20011020201210102222102 |
4 | 323333002212131312 |
5 | 2023402023222240 |
6 | 45331103502102 |
7 | 4440046325600 |
oct | 737702463566 |
9 | 204221712872 |
10 | 64408414070 |
11 | 25351963880 |
12 | 105962b7932 |
13 | 60c5b77c20 |
14 | 319015c170 |
15 | 1a1e79e815 |
hex | eff0a6776 |
64408414070 has 384 divisors, whose sum is σ = 168782745600. Its totient is φ = 17345664000.
The previous prime is 64408414069. The next prime is 64408414123. The reversal of 64408414070 is 7041480446.
It is a Harshad number since it is a multiple of its sum of digits (38).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 134464091 + ... + 134464569.
It is an arithmetic number, because the mean of its divisors is an integer number (439538400).
Almost surely, 264408414070 is an apocalyptic number.
64408414070 is an abundant number, since it is smaller than the sum of its proper divisors (104374331530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64408414070 is a wasteful number, since it uses less digits than its factorization.
64408414070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 644 (or 637 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 38.
The spelling of 64408414070 in words is "sixty-four billion, four hundred eight million, four hundred fourteen thousand, seventy".
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