Base | Representation |
---|---|
bin | 1111100000000… |
… | …10001001100111 |
3 | 100001200022200120 |
4 | 13300002021213 |
5 | 231242012411 |
6 | 20523013023 |
7 | 3136153500 |
oct | 760021147 |
9 | 301608616 |
10 | 130032231 |
11 | 6744415a |
12 | 3766a173 |
13 | 20c2a364 |
14 | 133abba7 |
15 | b638106 |
hex | 7c02267 |
130032231 has 12 divisors (see below), whose sum is σ = 201682872. Its totient is φ = 74304048.
The previous prime is 130032211. The next prime is 130032233. The reversal of 130032231 is 132230031.
It is not a de Polignac number, because 130032231 - 27 = 130032103 is a prime.
It is a super-2 number, since 2×1300322312 = 33816762197674722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 130032231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130032233) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442140 + ... + 442433.
It is an arithmetic number, because the mean of its divisors is an integer number (16806906).
Almost surely, 2130032231 is an apocalyptic number.
130032231 is a deficient number, since it is larger than the sum of its proper divisors (71650641).
130032231 is an equidigital number, since it uses as much as digits as its factorization.
130032231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 884590 (or 884583 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 130032231 is about 11403.1675862455. The cubic root of 130032231 is about 506.6215640157.
Adding to 130032231 its reverse (132230031), we get a palindrome (262262262).
The spelling of 130032231 in words is "one hundred thirty million, thirty-two thousand, two hundred thirty-one".
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