Base | Representation |
---|---|
bin | 111101001001101111… |
… | …0010010111000101110 |
3 | 110112222010210100022010 |
4 | 1322103132102320232 |
5 | 4122422220230220 |
6 | 140155024102050 |
7 | 12326211610164 |
oct | 1722336227056 |
9 | 415863710263 |
10 | 131323211310 |
11 | 5076a5903a5 |
12 | 2154ba64926 |
13 | c4cb0787c5 |
14 | 64db10d234 |
15 | 36390db1e0 |
hex | 1e93792e2e |
131323211310 has 64 divisors (see below), whose sum is σ = 327319103232. Its totient is φ = 33694569216.
The previous prime is 131323211281. The next prime is 131323211323. The reversal of 131323211310 is 13112323131.
It is a happy number.
It is a super-2 number, since 2×1313232113102 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673279 + ... + 846138.
It is an arithmetic number, because the mean of its divisors is an integer number (5114360988).
Almost surely, 2131323211310 is an apocalyptic number.
131323211310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131323211310 is an abundant number, since it is smaller than the sum of its proper divisors (195995891922).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131323211310 is a wasteful number, since it uses less digits than its factorization.
131323211310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1519537.
The product of its (nonzero) digits is 324, while the sum is 21.
Adding to 131323211310 its reverse (13112323131), we get a palindrome (144435534441).
The spelling of 131323211310 in words is "one hundred thirty-one billion, three hundred twenty-three million, two hundred eleven thousand, three hundred ten".
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