Base | Representation |
---|---|
bin | 1111100100110… |
… | …11101010100001 |
3 | 100002212021020020 |
4 | 13302123222201 |
5 | 231422123100 |
6 | 20544304053 |
7 | 3144412635 |
oct | 762335241 |
9 | 302767206 |
10 | 130661025 |
11 | 67833620 |
12 | 37912029 |
13 | 210ba621 |
14 | 134d2dc5 |
15 | b70e5a0 |
hex | 7c9baa1 |
130661025 has 48 divisors (see below), whose sum is σ = 237990720. Its totient is φ = 62726400.
The previous prime is 130661009. The next prime is 130661051. The reversal of 130661025 is 520166031.
It is not a de Polignac number, because 130661025 - 24 = 130661009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130660986 and 130661004.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89199 + ... + 90651.
It is an arithmetic number, because the mean of its divisors is an integer number (4958140).
Almost surely, 2130661025 is an apocalyptic number.
130661025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130661025 is a deficient number, since it is larger than the sum of its proper divisors (107329695).
130661025 is a wasteful number, since it uses less digits than its factorization.
130661025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1586 (or 1581 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 24.
The square root of 130661025 is about 11430.7053588132. The cubic root of 130661025 is about 507.4368708229.
The spelling of 130661025 in words is "one hundred thirty million, six hundred sixty-one thousand, twenty-five".
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