Base | Representation |
---|---|
bin | 111011111110111001… |
… | …011111000110100101 |
3 | 20011020120022001021000 |
4 | 323332321133012211 |
5 | 2023400420241423 |
6 | 45330540343513 |
7 | 4440020114340 |
oct | 737671370645 |
9 | 204216261230 |
10 | 64406024613 |
11 | 25350581617 |
12 | 10595544b99 |
13 | 60c551c448 |
14 | 318dad9457 |
15 | 1a1e47b843 |
hex | efee5f1a5 |
64406024613 has 32 divisors (see below), whose sum is σ = 109125632000. Its totient is φ = 36776984688.
The previous prime is 64406024593. The next prime is 64406024621. The reversal of 64406024613 is 31642060446.
64406024613 is a `hidden beast` number, since 6 + 4 + 4 + 0 + 602 + 46 + 1 + 3 = 666.
It is not a de Polignac number, because 64406024613 - 212 = 64406020517 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64406024623) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142620 + ... + 386202.
It is an arithmetic number, because the mean of its divisors is an integer number (3410176000).
Almost surely, 264406024613 is an apocalyptic number.
64406024613 is a gapful number since it is divisible by the number (63) formed by its first and last digit.
It is an amenable number.
64406024613 is a deficient number, since it is larger than the sum of its proper divisors (44719607387).
64406024613 is a wasteful number, since it uses less digits than its factorization.
64406024613 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 244998 (or 244992 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 36.
The spelling of 64406024613 in words is "sixty-four billion, four hundred six million, twenty-four thousand, six hundred thirteen".
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