Base | Representation |
---|---|
bin | 11101001111110111… |
… | …010110100000001110 |
3 | 10000001122110002202212 |
4 | 131033313112200032 |
5 | 1003304044244410 |
6 | 22232131150422 |
7 | 2161144246256 |
oct | 351767264016 |
9 | 100048402685 |
10 | 31404681230 |
11 | 1235613a90a |
12 | 6105445412 |
13 | 2c663c2520 |
14 | 173cc18966 |
15 | c3c0e5b05 |
hex | 74fdd680e |
31404681230 has 32 divisors (see below), whose sum is σ = 64457757504. Its totient is φ = 10913481216.
The previous prime is 31404681181. The next prime is 31404681239. The reversal of 31404681230 is 3218640413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31404681239) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7102922 + ... + 7107341.
It is an arithmetic number, because the mean of its divisors is an integer number (2014304922).
Almost surely, 231404681230 is an apocalyptic number.
31404681230 is an abundant number, since it is smaller than the sum of its proper divisors (33053076274).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31404681230 is a wasteful number, since it uses less digits than its factorization.
31404681230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14210300.
The product of its (nonzero) digits is 13824, while the sum is 32.
The spelling of 31404681230 in words is "thirty-one billion, four hundred four million, six hundred eighty-one thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •