Base | Representation |
---|---|
bin | 1110001100111011001111… |
… | …00010111010000001100111 |
3 | 11002120121020100221021220120 |
4 | 13012131213202322001213 |
5 | 13043134422232204111 |
6 | 150231022413133023 |
7 | 6402216345341013 |
oct | 706354742720147 |
9 | 132517210837816 |
10 | 31230444413031 |
11 | 9a50836771276 |
12 | 360480478a173 |
13 | 14570311b0a26 |
14 | 79d7c0d65543 |
15 | 392597626406 |
hex | 1c67678ba067 |
31230444413031 has 8 divisors (see below), whose sum is σ = 41645290836480. Its totient is φ = 20817947132472.
The previous prime is 31230444413027. The next prime is 31230444413039. The reversal of 31230444413031 is 13031444403213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31230444413031 - 22 = 31230444413027 is a prime.
It is a super-2 number, since 2×312304444130312 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 31230444412983 and 31230444413001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31230444413039) 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, 587254701 + ... + 587307878.
It is an arithmetic number, because the mean of its divisors is an integer number (5205661354560).
Almost surely, 231230444413031 is an apocalyptic number.
31230444413031 is a deficient number, since it is larger than the sum of its proper divisors (10414846423449).
31230444413031 is a wasteful number, since it uses less digits than its factorization.
31230444413031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1174571445.
The product of its (nonzero) digits is 41472, while the sum is 33.
Adding to 31230444413031 its reverse (13031444403213), we get a palindrome (44261888816244).
The spelling of 31230444413031 in words is "thirty-one trillion, two hundred thirty billion, four hundred forty-four million, four hundred thirteen thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.088 sec. • engine limits •