Base | Representation |
---|---|
bin | 11000100101100101… |
… | …11000101001110111 |
3 | 1021001221120012210121 |
4 | 30102302320221313 |
5 | 204013224343111 |
6 | 10021502432411 |
7 | 645054053401 |
oct | 142262705167 |
9 | 37057505717 |
10 | 13200231031 |
11 | 5664205a49 |
12 | 2684892707 |
13 | 1324a0a1c0 |
14 | 8d31abb71 |
15 | 523d04871 |
hex | 312cb8a77 |
13200231031 has 12 divisors (see below), whose sum is σ = 14553944328. Its totient is φ = 11901438864.
The previous prime is 13200230983. The next prime is 13200231041. The reversal of 13200231031 is 13013200231.
It is not a de Polignac number, because 13200231031 - 27 = 13200230903 is a prime.
It is a super-2 number, since 2×132002310312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13200230996 and 13200231014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13200231041) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250545 + ... + 298618.
It is an arithmetic number, because the mean of its divisors is an integer number (1212828694).
Almost surely, 213200231031 is an apocalyptic number.
13200231031 is a deficient number, since it is larger than the sum of its proper divisors (1353713297).
13200231031 is an equidigital number, since it uses as much as digits as its factorization.
13200231031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 549262 (or 549219 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 13200231031 its reverse (13013200231), we get a palindrome (26213431262).
The spelling of 13200231031 in words is "thirteen billion, two hundred million, two hundred thirty-one thousand, thirty-one".
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