Base | Representation |
---|---|
bin | 1111100101000… |
… | …00010100111001 |
3 | 100002220020102111 |
4 | 13302200110321 |
5 | 231423230441 |
6 | 20544532321 |
7 | 3144522415 |
oct | 762402471 |
9 | 302806374 |
10 | 130680121 |
11 | 67846a00 |
12 | 379210a1 |
13 | 210c6220 |
14 | 134d9d45 |
15 | b715081 |
hex | 7ca0539 |
130680121 has 12 divisors (see below), whose sum is σ = 154691236. Its totient is φ = 109660320.
The previous prime is 130680113. The next prime is 130680133. The reversal of 130680121 is 121086031.
It can be written as a sum of positive squares in 2 ways, for example, as 40144896 + 90535225 = 6336^2 + 9515^2 .
It is not a de Polignac number, because 130680121 - 23 = 130680113 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130680092 and 130680101.
It is not an unprimeable number, because it can be changed into a prime (130680101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39966 + ... + 43111.
Almost surely, 2130680121 is an apocalyptic number.
130680121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
130680121 is a deficient number, since it is larger than the sum of its proper divisors (24011115).
130680121 is a wasteful number, since it uses less digits than its factorization.
130680121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83112 (or 83101 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 22.
The square root of 130680121 is about 11431.5406223308. The cubic root of 130680121 is about 507.4615901107.
The spelling of 130680121 in words is "one hundred thirty million, six hundred eighty thousand, one hundred twenty-one".
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