Base | Representation |
---|---|
bin | 111011111101100000… |
… | …101011111000101011 |
3 | 20011011221111101012220 |
4 | 323331200223320223 |
5 | 2023323440334110 |
6 | 45324345405123 |
7 | 4436315212200 |
oct | 737540537053 |
9 | 204157441186 |
10 | 64382746155 |
11 | 25339422122 |
12 | 105897997a3 |
13 | 60c075ba00 |
14 | 318a999ca7 |
15 | 1a1c3ce370 |
hex | efd82be2b |
64382746155 has 288 divisors, whose sum is σ = 136898112960. Its totient is φ = 25713192960.
The previous prime is 64382746093. The next prime is 64382746163. The reversal of 64382746155 is 55164728346.
It is not a de Polignac number, because 64382746155 - 26 = 64382746091 is a prime.
It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 64382746098 and 64382746107.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 219736189 + ... + 219736481.
It is an arithmetic number, because the mean of its divisors is an integer number (475340670).
Almost surely, 264382746155 is an apocalyptic number.
64382746155 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
64382746155 is an abundant number, since it is smaller than the sum of its proper divisors (72515366805).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64382746155 is a wasteful number, since it uses less digits than its factorization.
64382746155 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 431 (or 411 counting only the distinct ones).
The product of its digits is 4838400, while the sum is 51.
The spelling of 64382746155 in words is "sixty-four billion, three hundred eighty-two million, seven hundred forty-six thousand, one hundred fifty-five".
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