Base | Representation |
---|---|
bin | 1000000111000… |
… | …00100001101101 |
3 | 11202000012121000 |
4 | 10003200201231 |
5 | 114403403100 |
6 | 10430030513 |
7 | 1454142615 |
oct | 403404155 |
9 | 152005530 |
10 | 68028525 |
11 | 35444924 |
12 | 1a948439 |
13 | 1112b386 |
14 | 906ba45 |
15 | 5e8b900 |
hex | 40e086d |
68028525 has 48 divisors (see below), whose sum is σ = 126380800. Its totient is φ = 35873280.
The previous prime is 68028523. The next prime is 68028529. The reversal of 68028525 is 52582086.
It is not a de Polignac number, because 68028525 - 21 = 68028523 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68028525.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68028523) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64956 + ... + 65994.
Almost surely, 268028525 is an apocalyptic number.
It is an amenable number.
68028525 is a deficient number, since it is larger than the sum of its proper divisors (58352275).
68028525 is a wasteful number, since it uses less digits than its factorization.
68028525 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1155 (or 1144 counting only the distinct ones).
The product of its (nonzero) digits is 38400, while the sum is 36.
The square root of 68028525 is about 8247.9406520658. The cubic root of 68028525 is about 408.2225753562. Note that the first 3 decimals are identical.
The spelling of 68028525 in words is "sixty-eight million, twenty-eight thousand, five hundred twenty-five".
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