Base | Representation |
---|---|
bin | 1111100110101… |
… | …01001001100001 |
3 | 100010022020012211 |
4 | 13303111021201 |
5 | 232002141411 |
6 | 20553322121 |
7 | 3146413252 |
oct | 763251141 |
9 | 303266184 |
10 | 130896481 |
11 | 67984511 |
12 | 37a06341 |
13 | 21170851 |
14 | 13554b29 |
15 | b759221 |
hex | 7cd5261 |
130896481 has 9 divisors (see below), whose sum is σ = 139256121. Its totient is φ = 123013632.
The previous prime is 130896463. The next prime is 130896497. The reversal of 130896481 is 184698031.
The square root of 130896481 is 11441.
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 1846881 + 129049600 = 1359^2 + 11360^2 .
It is not a de Polignac number, because 130896481 - 221 = 128799329 is a prime.
It is a super-2 number, since 2×1308964812 = 34267777476366722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130896421) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 194161 + ... + 194833.
Almost surely, 2130896481 is an apocalyptic number.
130896481 is the 11441-st square number.
130896481 is the 5721-st centered octagonal number.
It is an amenable number.
130896481 is a deficient number, since it is larger than the sum of its proper divisors (8359640).
130896481 is an frugal number, since it uses more digits than its factorization.
130896481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1380 (or 690 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 40.
The cubic root of 130896481 is about 507.7414945852.
The spelling of 130896481 in words is "one hundred thirty million, eight hundred ninety-six thousand, four hundred eighty-one".
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