Base | Representation |
---|---|
bin | 11000010001011010… |
… | …11000000000011111 |
3 | 1020122011011010021010 |
4 | 30020231120000133 |
5 | 203141414430211 |
6 | 5553015510303 |
7 | 640630536501 |
oct | 141055300037 |
9 | 36564133233 |
10 | 13031014431 |
11 | 5587739016 |
12 | 2638088393 |
13 | 12c8940636 |
14 | 8b891dd71 |
15 | 51402b4a6 |
hex | 308b5801f |
13031014431 has 8 divisors (see below), whose sum is σ = 17612695600. Its totient is φ = 8568338112.
The previous prime is 13031014427. The next prime is 13031014433. The reversal of 13031014431 is 13441013031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13031014431 - 22 = 13031014427 is a prime.
It is a super-2 number, since 2×130310144312 (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 = 13031014398 and 13031014407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13031014433) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29750956 + ... + 29751393.
It is an arithmetic number, because the mean of its divisors is an integer number (2201586950).
Almost surely, 213031014431 is an apocalyptic number.
13031014431 is a deficient number, since it is larger than the sum of its proper divisors (4581681169).
13031014431 is an equidigital number, since it uses as much as digits as its factorization.
13031014431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59502425.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 13031014431 its reverse (13441013031), we get a palindrome (26472027462).
The spelling of 13031014431 in words is "thirteen billion, thirty-one million, fourteen thousand, four hundred thirty-one".
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