Base | Representation |
---|---|
bin | 11101110101100010000010… |
… | …100010111001010101101110 |
3 | 122012121200222221221211101020 |
4 | 131311202002202321111232 |
5 | 114144420204414410410 |
6 | 1143030322511355010 |
7 | 36432323154012003 |
oct | 3565420242712556 |
9 | 565550887854336 |
10 | 131222031013230 |
11 | 388a1a50612673 |
12 | 12873860822a66 |
13 | 582b2522600a1 |
14 | 245927461b8aa |
15 | 10285bd48ba70 |
hex | 7758828b956e |
131222031013230 has 32 divisors (see below), whose sum is σ = 314938365486624. Its totient is φ = 34991931486336.
The previous prime is 131222031013211. The next prime is 131222031013237. The reversal of 131222031013230 is 32310130222131.
It is a self number, because there is not a number n which added to its sum of digits gives 131222031013230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131222031013237) 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, 36381717 + ... + 39825536.
It is an arithmetic number, because the mean of its divisors is an integer number (9841823921457).
Almost surely, 2131222031013230 is an apocalyptic number.
131222031013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131222031013230 is an abundant number, since it is smaller than the sum of its proper divisors (183716334473394).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131222031013230 is a wasteful number, since it uses less digits than its factorization.
131222031013230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76264660.
The product of its (nonzero) digits is 1296, while the sum is 24.
Adding to 131222031013230 its reverse (32310130222131), we get a palindrome (163532161235361).
The spelling of 131222031013230 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, thirty-one million, thirteen thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •