Base | Representation |
---|---|
bin | 1111100100010… |
… | …0111010010000 |
3 | 11112212021111010 |
4 | 3321010322100 |
5 | 113203401333 |
6 | 10251250520 |
7 | 1421663265 |
oct | 371047220 |
9 | 145767433 |
10 | 65293968 |
11 | 33947363 |
12 | 19a49a40 |
13 | 106b17ac |
14 | 895926c |
15 | 5aeb563 |
hex | 3e44e90 |
65293968 has 40 divisors (see below), whose sum is σ = 170265888. Its totient is φ = 21559552.
The previous prime is 65293961. The next prime is 65293997. The reversal of 65293968 is 86939256.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is not an unprimeable number, because it can be changed into a prime (65293961) 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, 1221 + ... + 11492.
Almost surely, 265293968 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 65293968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85132944).
65293968 is an abundant number, since it is smaller than the sum of its proper divisors (104971920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65293968 is a wasteful number, since it uses less digits than its factorization.
65293968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12831 (or 12825 counting only the distinct ones).
The product of its digits is 699840, while the sum is 48.
The square root of 65293968 is about 8080.4683032606. The cubic root of 65293968 is about 402.6778001298.
The spelling of 65293968 in words is "sixty-five million, two hundred ninety-three thousand, nine hundred sixty-eight".
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