Base | Representation |
---|---|
bin | 11100101101110100… |
… | …110111010110111001 |
3 | 2221120211212101010021 |
4 | 130231310313112321 |
5 | 1001121400312100 |
6 | 22055331050441 |
7 | 2141041211200 |
oct | 345564672671 |
9 | 87524771107 |
10 | 30833604025 |
11 | 12092847084 |
12 | 5b86140a21 |
13 | 2ba4cb2513 |
14 | 16c7040237 |
15 | c06ddca1a |
hex | 72dd375b9 |
30833604025 has 81 divisors (see below), whose sum is σ = 46330232871. Its totient is φ = 20295972480.
The previous prime is 30833603993. The next prime is 30833604047. The reversal of 30833604025 is 52040633803.
The square root of 30833604025 is 175595.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 13 ways, for example, as 5191346601 + 25642257424 = 72051^2 + 160132^2 .
It is not a de Polignac number, because 30833604025 - 25 = 30833603993 is a prime.
It is a super-2 number, since 2×308336040252 (a number of 22 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 178228839 + ... + 178229011.
Almost surely, 230833604025 is an apocalyptic number.
30833604025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30833604025 is the 175595-th square number.
30833604025 is the 87798-th centered octagonal number.
It is an amenable number.
30833604025 is a deficient number, since it is larger than the sum of its proper divisors (15496628846).
30833604025 is an equidigital number, since it uses as much as digits as its factorization.
30833604025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 428 (or 214 counting only the distinct ones).
The product of its (nonzero) digits is 51840, while the sum is 34.
The spelling of 30833604025 in words is "thirty billion, eight hundred thirty-three million, six hundred four thousand, twenty-five".
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