Base | Representation |
---|---|
bin | 11000101010111101… |
… | …01000101001010111 |
3 | 1021012002021122000112 |
4 | 30111132220221113 |
5 | 204111241113411 |
6 | 10030151433235 |
7 | 646141542356 |
oct | 142536505127 |
9 | 37162248015 |
10 | 13245254231 |
11 | 5687667600 |
12 | 269798581b |
13 | 1331142251 |
14 | 8d916b99d |
15 | 527c49b8b |
hex | 3157a8a57 |
13245254231 has 24 divisors (see below), whose sum is σ = 14741141184. Its totient is φ = 11891000000.
The previous prime is 13245254227. The next prime is 13245254233.
13245254231 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 13245254231 - 22 = 13245254227 is a prime.
It is a super-2 number, since 2×132452542312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13245254233) 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, 5632706 + ... + 5635056.
It is an arithmetic number, because the mean of its divisors is an integer number (614214216).
Almost surely, 213245254231 is an apocalyptic number.
13245254231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
13245254231 is a deficient number, since it is larger than the sum of its proper divisors (1495886953).
13245254231 is a wasteful number, since it uses less digits than its factorization.
13245254231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2935 (or 2924 counting only the distinct ones).
The product of its digits is 28800, while the sum is 32.
The spelling of 13245254231 in words is "thirteen billion, two hundred forty-five million, two hundred fifty-four thousand, two hundred thirty-one".
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