Base | Representation |
---|---|
bin | 1111011110001… |
… | …1101110100100 |
3 | 11112010001110011 |
4 | 3313203232210 |
5 | 113103132113 |
6 | 10234540004 |
7 | 1415414620 |
oct | 367435644 |
9 | 145101404 |
10 | 64895908 |
11 | 336a5290 |
12 | 19897604 |
13 | 105a255c |
14 | 8894180 |
15 | 5a6d63d |
hex | 3de3ba4 |
64895908 has 48 divisors (see below), whose sum is σ = 144635904. Its totient is φ = 24740640.
The previous prime is 64895869. The next prime is 64895911. The reversal of 64895908 is 80959846.
It is a happy number.
It is a super-2 number, since 2×648959082 = 8422957750288928, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12235 + ... + 16717.
It is an arithmetic number, because the mean of its divisors is an integer number (3013248).
Almost surely, 264895908 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 64895908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72317952).
64895908 is an abundant number, since it is smaller than the sum of its proper divisors (79739996).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64895908 is a wasteful number, since it uses less digits than its factorization.
64895908 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4552 (or 4550 counting only the distinct ones).
The product of its (nonzero) digits is 622080, while the sum is 49.
The square root of 64895908 is about 8055.7996499416. The cubic root of 64895908 is about 401.8578327842.
The spelling of 64895908 in words is "sixty-four million, eight hundred ninety-five thousand, nine hundred eight".
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