Base | Representation |
---|---|
bin | 111101001010000001… |
… | …1101011011100001100 |
3 | 110112222211020020020110 |
4 | 1322110003223130030 |
5 | 4122432222324322 |
6 | 140200014120020 |
7 | 12326361114264 |
oct | 1722403533414 |
9 | 415884206213 |
10 | 131333011212 |
11 | 50775074197 |
12 | 215531b0010 |
13 | c5000ca270 |
14 | 64dc5407a4 |
15 | 3639dc4c0c |
hex | 1e940eb70c |
131333011212 has 48 divisors (see below), whose sum is σ = 347385570560. Its totient is φ = 38283306048.
The previous prime is 131333011177. The next prime is 131333011217. The reversal of 131333011212 is 212110333131.
It is a happy number.
131333011212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1313330112122 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (131333011217) 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, 22151728 + ... + 22157655.
Almost surely, 2131333011212 is an apocalyptic number.
131333011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131333011212 is an abundant number, since it is smaller than the sum of its proper divisors (216052559348).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131333011212 is a wasteful number, since it uses less digits than its factorization.
131333011212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 44309422 (or 44309420 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 21.
Adding to 131333011212 its reverse (212110333131), we get a palindrome (343443344343).
The spelling of 131333011212 in words is "one hundred thirty-one billion, three hundred thirty-three million, eleven thousand, two hundred twelve".
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