Base | Representation |
---|---|
bin | 100110101111110… |
… | …0110110110011111 |
3 | 10100121102111202120 |
4 | 1031133212312133 |
5 | 10130313144411 |
6 | 333002154023 |
7 | 44134635030 |
oct | 11537466637 |
9 | 3317374676 |
10 | 1300131231 |
11 | 607987923 |
12 | 3034b2913 |
13 | 179482929 |
14 | c4956a87 |
15 | 79219106 |
hex | 4d7e6d9f |
1300131231 has 16 divisors (see below), whose sum is σ = 1982457600. Its totient is φ = 742442688.
The previous prime is 1300131193. The next prime is 1300131251. The reversal of 1300131231 is 1321310031.
It is not a de Polignac number, because 1300131231 - 26 = 1300131167 is a prime.
It is a super-2 number, since 2×13001312312 = 3380682435643150722, 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 1300131231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1300131251) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13555 + ... + 52763.
It is an arithmetic number, because the mean of its divisors is an integer number (123903600).
Almost surely, 21300131231 is an apocalyptic number.
1300131231 is a deficient number, since it is larger than the sum of its proper divisors (682326369).
1300131231 is a wasteful number, since it uses less digits than its factorization.
1300131231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40798.
The product of its (nonzero) digits is 54, while the sum is 15.
The square root of 1300131231 is about 36057.3325552515. The cubic root of 1300131231 is about 1091.4296060766.
Adding to 1300131231 its reverse (1321310031), we get a palindrome (2621441262).
The spelling of 1300131231 in words is "one billion, three hundred million, one hundred thirty-one thousand, two hundred thirty-one".
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