Base | Representation |
---|---|
bin | 111011111100001011… |
… | …100010100010101111 |
3 | 20011010101111101020102 |
4 | 323330023202202233 |
5 | 2023302232110042 |
6 | 45322231141315 |
7 | 4435624406630 |
oct | 737413424257 |
9 | 204111441212 |
10 | 64360425647 |
11 | 25327867421 |
12 | 1058221483b |
13 | 60b8c452cb |
14 | 3187a29887 |
15 | 1a1a470b32 |
hex | efc2e28af |
64360425647 has 8 divisors (see below), whose sum is σ = 77881523616. Its totient is φ = 51921015552.
The previous prime is 64360425611. The next prime is 64360425677. The reversal of 64360425647 is 74652406346.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 64360425647 - 216 = 64360360111 is a prime.
It is a super-3 number, since 3×643604256473 (a number of 33 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64360425677) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270421838 + ... + 270422075.
It is an arithmetic number, because the mean of its divisors is an integer number (9735190452).
Almost surely, 264360425647 is an apocalyptic number.
64360425647 is a deficient number, since it is larger than the sum of its proper divisors (13521097969).
64360425647 is a wasteful number, since it uses less digits than its factorization.
64360425647 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 540843937.
The product of its (nonzero) digits is 2903040, while the sum is 47.
The spelling of 64360425647 in words is "sixty-four billion, three hundred sixty million, four hundred twenty-five thousand, six hundred forty-seven".
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