Base | Representation |
---|---|
bin | 1111011111001… |
… | …0000000000000 |
3 | 11112020000122100 |
4 | 3313302000000 |
5 | 113112014433 |
6 | 10240110400 |
7 | 1416050223 |
oct | 367620000 |
9 | 145200570 |
10 | 64954368 |
11 | 337351a6 |
12 | 19905400 |
13 | 105c304b |
14 | 88ab5ba |
15 | 5a80b13 |
hex | 3df2000 |
64954368 has 84 divisors (see below), whose sum is σ = 187847478. Its totient is φ = 21626880.
The previous prime is 64954367. The next prime is 64954387. The reversal of 64954368 is 86345946.
64954368 is a `hidden beast` number, since 6 + 49 + 543 + 68 = 666.
It can be written as a sum of positive squares in only one way, i.e., 61968384 + 2985984 = 7872^2 + 1728^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64954367) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73288 + ... + 74168.
Almost surely, 264954368 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64954368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93923739).
64954368 is an abundant number, since it is smaller than the sum of its proper divisors (122893110).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64954368 is an equidigital number, since it uses as much as digits as its factorization.
64954368 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 913 (or 886 counting only the distinct ones).
The product of its digits is 622080, while the sum is 45.
The square root of 64954368 is about 8059.4272749371. The cubic root of 64954368 is about 401.9784647259.
The spelling of 64954368 in words is "sixty-four million, nine hundred fifty-four thousand, three hundred sixty-eight".
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