Base | Representation |
---|---|
bin | 11001000011110111… |
… | …11001101111100111 |
3 | 1021201122112212110211 |
4 | 30201323321233213 |
5 | 210023242044111 |
6 | 10103015200251 |
7 | 654260156332 |
oct | 144173715747 |
9 | 37648485424 |
10 | 13454253031 |
11 | 578463648a |
12 | 2735976087 |
13 | 136552a48b |
14 | 918c13619 |
15 | 53b280521 |
hex | 321ef9be7 |
13454253031 has 4 divisors (see below), whose sum is σ = 13467830464. Its totient is φ = 13440675600.
The previous prime is 13454253023. The next prime is 13454253047. The reversal of 13454253031 is 13035245431.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13454253031 - 23 = 13454253023 is a prime.
It is a super-2 number, since 2×134542530312 (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 = 13454252984 and 13454253002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13454253091) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6787230 + ... + 6789211.
It is an arithmetic number, because the mean of its divisors is an integer number (3366957616).
Almost surely, 213454253031 is an apocalyptic number.
13454253031 is a deficient number, since it is larger than the sum of its proper divisors (13577433).
13454253031 is an equidigital number, since it uses as much as digits as its factorization.
13454253031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13577432.
The product of its (nonzero) digits is 21600, while the sum is 31.
Adding to 13454253031 its reverse (13035245431), we get a palindrome (26489498462).
The spelling of 13454253031 in words is "thirteen billion, four hundred fifty-four million, two hundred fifty-three thousand, thirty-one".
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