Base | Representation |
---|---|
bin | 10010101011110101… |
… | …11011000100000111 |
3 | 221220002221011111112 |
4 | 21111322323010013 |
5 | 131021022203411 |
6 | 4335224355235 |
7 | 503405604044 |
oct | 112572730407 |
9 | 27802834445 |
10 | 10031444231 |
11 | 4288541586 |
12 | 1b3b615b1b |
13 | c3b379923 |
14 | 6b23ca1cb |
15 | 3daa1eb8b |
hex | 255ebb107 |
10031444231 has 4 divisors (see below), whose sum is σ = 10559415000. Its totient is φ = 9503473464.
The previous prime is 10031444209. The next prime is 10031444233. The reversal of 10031444231 is 13244413001.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13244413001 = 1499 ⋅8835499.
It is a cyclic number.
It is not a de Polignac number, because 10031444231 - 218 = 10031182087 is a prime.
It is a super-2 number, since 2×100314442312 (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 = 10031444197 and 10031444206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10031444233) 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, 263985356 + ... + 263985393.
It is an arithmetic number, because the mean of its divisors is an integer number (2639853750).
Almost surely, 210031444231 is an apocalyptic number.
10031444231 is a deficient number, since it is larger than the sum of its proper divisors (527970769).
10031444231 is an equidigital number, since it uses as much as digits as its factorization.
10031444231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 527970768.
The product of its (nonzero) digits is 1152, while the sum is 23.
Adding to 10031444231 its reverse (13244413001), we get a palindrome (23275857232).
The spelling of 10031444231 in words is "ten billion, thirty-one million, four hundred forty-four thousand, two hundred thirty-one".
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