Base | Representation |
---|---|
bin | 1111100001001… |
… | …11100000101111 |
3 | 100001222002121102 |
4 | 13300213200233 |
5 | 231311412023 |
6 | 20530153315 |
7 | 3140361605 |
oct | 760474057 |
9 | 301862542 |
10 | 130185263 |
11 | 6753912a |
12 | 3772283b |
13 | 20c81c00 |
14 | 1340b875 |
15 | b668628 |
hex | 7c2782f |
130185263 has 24 divisors (see below), whose sum is σ = 147834720. Its totient is φ = 114441600.
The previous prime is 130185257. The next prime is 130185271. The reversal of 130185263 is 362581031.
It is not a de Polignac number, because 130185263 - 28 = 130185007 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130181263) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494870 + ... + 495132.
It is an arithmetic number, because the mean of its divisors is an integer number (6159780).
Almost surely, 2130185263 is an apocalyptic number.
130185263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
130185263 is a deficient number, since it is larger than the sum of its proper divisors (17649457).
130185263 is a wasteful number, since it uses less digits than its factorization.
130185263 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 419 (or 406 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 29.
The square root of 130185263 is about 11409.8756785515. The cubic root of 130185263 is about 506.8202299318.
It can be divided in two parts, 13018 and 5263, that added together give a palindrome (18281).
The spelling of 130185263 in words is "one hundred thirty million, one hundred eighty-five thousand, two hundred sixty-three".
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