Base | Representation |
---|---|
bin | 110001101101… |
… | …001101101011 |
3 | 220112000010220 |
4 | 301231031223 |
5 | 11313432001 |
6 | 1143141123 |
7 | 215520033 |
oct | 61551553 |
9 | 26460126 |
10 | 13030251 |
11 | 739a903 |
12 | 44447a3 |
13 | 2912c10 |
14 | 1a328c3 |
15 | 1225c36 |
hex | c6d36b |
13030251 has 32 divisors (see below), whose sum is σ = 19897920. Its totient is φ = 7526400.
The previous prime is 13030231. The next prime is 13030267. The reversal of 13030251 is 15203031.
It is a happy number.
It is not a de Polignac number, because 13030251 - 27 = 13030123 is a prime.
It is a super-2 number, since 2×130302512 = 339574882246002, 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 13030251.
It is not an unprimeable number, because it can be changed into a prime (13030201) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46231 + ... + 46511.
It is an arithmetic number, because the mean of its divisors is an integer number (621810).
Almost surely, 213030251 is an apocalyptic number.
13030251 is a deficient number, since it is larger than the sum of its proper divisors (6867669).
13030251 is a wasteful number, since it uses less digits than its factorization.
13030251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 367.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 13030251 is about 3609.7438967328. The cubic root of 13030251 is about 235.3157126785.
Adding to 13030251 its reverse (15203031), we get a palindrome (28233282).
It can be divided in two parts, 130 and 30251, that added together give a triangular number (30381 = T246).
The spelling of 13030251 in words is "thirteen million, thirty thousand, two hundred fifty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •