Base | Representation |
---|---|
bin | 111011101110001000… |
… | …000011011010001101 |
3 | 20010111221210202100002 |
4 | 323232020003122031 |
5 | 2022311401140134 |
6 | 45243005214045 |
7 | 4430032240001 |
oct | 735610033215 |
9 | 203457722302 |
10 | 64124630669 |
11 | 25216756140 |
12 | 10517261325 |
13 | 607c137458 |
14 | 31645aa701 |
15 | 1a048e587e |
hex | eee20368d |
64124630669 has 8 divisors (see below), whose sum is σ = 72366354720. Its totient is φ = 56284942000.
The previous prime is 64124630657. The next prime is 64124630677. The reversal of 64124630669 is 96603642146.
64124630669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 64124630669 - 228 = 63856195213 is a prime.
It is a super-2 number, since 2×641246306692 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64124630639) 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, 100508507 + ... + 100509144.
It is an arithmetic number, because the mean of its divisors is an integer number (9045794340).
Almost surely, 264124630669 is an apocalyptic number.
It is an amenable number.
64124630669 is a deficient number, since it is larger than the sum of its proper divisors (8241724051).
64124630669 is a wasteful number, since it uses less digits than its factorization.
64124630669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201017691.
The product of its (nonzero) digits is 1119744, while the sum is 47.
The spelling of 64124630669 in words is "sixty-four billion, one hundred twenty-four million, six hundred thirty thousand, six hundred sixty-nine".
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