Base | Representation |
---|---|
bin | 11000101001010001… |
… | …10110100011010111 |
3 | 1021011002202100002011 |
4 | 30110220312203113 |
5 | 204044133433130 |
6 | 10024525325051 |
7 | 645610652062 |
oct | 142450664327 |
9 | 37132670064 |
10 | 13231155415 |
11 | 567a707995 |
12 | 2693106787 |
13 | 132b246b5a |
14 | 8d733b8d9 |
15 | 5268b252a |
hex | 314a368d7 |
13231155415 has 64 divisors (see below), whose sum is σ = 17347903488. Its totient is φ = 9665740800.
The previous prime is 13231155409. The next prime is 13231155451. The reversal of 13231155415 is 51455113231.
13231155415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13231155415 - 25 = 13231155383 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51482967 + ... + 51483223.
It is an arithmetic number, because the mean of its divisors is an integer number (271060992).
Almost surely, 213231155415 is an apocalyptic number.
13231155415 is a deficient number, since it is larger than the sum of its proper divisors (4116748073).
13231155415 is a wasteful number, since it uses less digits than its factorization.
13231155415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 568.
The product of its digits is 9000, while the sum is 31.
Adding to 13231155415 its reverse (51455113231), we get a palindrome (64686268646).
The spelling of 13231155415 in words is "thirteen billion, two hundred thirty-one million, one hundred fifty-five thousand, four hundred fifteen".
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