Base | Representation |
---|---|
bin | 100000000011010011… |
… | …0001010110111101001 |
3 | 20120122220001200220121 |
4 | 1000012212022313221 |
5 | 2111431004133100 |
6 | 51341540523241 |
7 | 4654450405444 |
oct | 1000646126751 |
9 | 216586050817 |
10 | 68830146025 |
11 | 27210906503 |
12 | 1140b0b0521 |
13 | 664bc79774 |
14 | 348d4d265b |
15 | 1bcca7c51a |
hex | 100698ade9 |
68830146025 has 27 divisors (see below), whose sum is σ = 86201985541. Its totient is φ = 54519467840.
The previous prime is 68830146017. The next prime is 68830146107. The reversal of 68830146025 is 52064103886.
The square root of 68830146025 is 262355.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 200817241 + 68629328784 = 14171^2 + 261972^2 .
It is not a de Polignac number, because 68830146025 - 23 = 68830146017 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 179712984 + ... + 179713366.
Almost surely, 268830146025 is an apocalyptic number.
68830146025 is the 262355-th square number.
68830146025 is the 131178-th centered octagonal number.
It is an amenable number.
68830146025 is a deficient number, since it is larger than the sum of its proper divisors (17371839516).
68830146025 is an frugal number, since it uses more digits than its factorization.
68830146025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1050 (or 525 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 43.
The spelling of 68830146025 in words is "sixty-eight billion, eight hundred thirty million, one hundred forty-six thousand, twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •