Base | Representation |
---|---|
bin | 1000001011100… |
… | …11111111001101 |
3 | 11210010220010101 |
4 | 10011303333031 |
5 | 120032220100 |
6 | 10451011101 |
7 | 1462236553 |
oct | 405637715 |
9 | 153126111 |
10 | 68632525 |
11 | 358176a5 |
12 | 1ab99a91 |
13 | 112b0280 |
14 | 9187bd3 |
15 | 605a86a |
hex | 4173fcd |
68632525 has 12 divisors (see below), whose sum is σ = 91651252. Its totient is φ = 50682240.
The previous prime is 68632523. The next prime is 68632547. The reversal of 68632525 is 52523686.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 12517444 + 56115081 = 3538^2 + 7491^2 .
It is not a de Polignac number, because 68632525 - 21 = 68632523 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68632523) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105264 + ... + 105913.
Almost surely, 268632525 is an apocalyptic number.
68632525 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
It is an amenable number.
68632525 is a deficient number, since it is larger than the sum of its proper divisors (23018727).
68632525 is a wasteful number, since it uses less digits than its factorization.
68632525 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 211200 (or 211195 counting only the distinct ones).
The product of its digits is 86400, while the sum is 37.
The square root of 68632525 is about 8284.4749380996. The cubic root of 68632525 is about 409.4271695066.
The spelling of 68632525 in words is "sixty-eight million, six hundred thirty-two thousand, five hundred twenty-five".
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