Base | Representation |
---|---|
bin | 111100100000110100… |
… | …100000100100001101 |
3 | 20012201020012100222100 |
4 | 330200310200210031 |
5 | 2031032114121404 |
6 | 45503230505313 |
7 | 4460100423201 |
oct | 744064404415 |
9 | 205636170870 |
10 | 64975145229 |
11 | 25612859335 |
12 | 10714065239 |
13 | 61863c59c7 |
14 | 3205524b01 |
15 | 1a543e9d39 |
hex | f20d2090d |
64975145229 has 12 divisors (see below), whose sum is σ = 95253779296. Its totient is φ = 42670244232.
The previous prime is 64975145219. The next prime is 64975145231. The reversal of 64975145229 is 92254157946.
It is a happy number.
64975145229 is a `hidden beast` number, since 6 + 49 + 75 + 1 + 4 + 522 + 9 = 666.
It is not a de Polignac number, because 64975145229 - 25 = 64975145197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64975145219) 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, 53875969 + ... + 53877174.
Almost surely, 264975145229 is an apocalyptic number.
It is an amenable number.
64975145229 is a deficient number, since it is larger than the sum of its proper divisors (30278634067).
64975145229 is a wasteful number, since it uses less digits than its factorization.
64975145229 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107753216 (or 107753213 counting only the distinct ones).
The product of its digits is 5443200, while the sum is 54.
The spelling of 64975145229 in words is "sixty-four billion, nine hundred seventy-five million, one hundred forty-five thousand, two hundred twenty-nine".
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