Base | Representation |
---|---|
bin | 1000001101001… |
… | …11110111100001 |
3 | 11210112200121202 |
4 | 10012213313201 |
5 | 120111020100 |
6 | 10455330545 |
7 | 1464113234 |
oct | 406476741 |
9 | 153480552 |
10 | 68845025 |
11 | 35952317 |
12 | 1b080a55 |
13 | 11355c02 |
14 | 920141b |
15 | 609d7d5 |
hex | 41a7de1 |
68845025 has 12 divisors (see below), whose sum is σ = 85482624. Its totient is φ = 55002000.
The previous prime is 68845013. The next prime is 68845031. The reversal of 68845025 is 52054886.
It is not a de Polignac number, because 68845025 - 210 = 68844001 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 68845025.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24440 + ... + 27110.
It is an arithmetic number, because the mean of its divisors is an integer number (7123552).
Almost surely, 268845025 is an apocalyptic number.
It is an amenable number.
68845025 is a deficient number, since it is larger than the sum of its proper divisors (16637599).
68845025 is a wasteful number, since it uses less digits than its factorization.
68845025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3712 (or 3707 counting only the distinct ones).
The product of its (nonzero) digits is 76800, while the sum is 38.
The square root of 68845025 is about 8297.2902203069. The cubic root of 68845025 is about 409.8492902358.
The spelling of 68845025 in words is "sixty-eight million, eight hundred forty-five thousand, twenty-five".
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