Base | Representation |
---|---|
bin | 111101010111011100… |
… | …1000011010000101111 |
3 | 110121011012100200220210 |
4 | 1322232321003100233 |
5 | 4124343000210111 |
6 | 140312415313503 |
7 | 12343465542264 |
oct | 1725671032057 |
9 | 417135320823 |
10 | 131783210031 |
11 | 50986206230 |
12 | 21659b1b893 |
13 | c5724665b5 |
14 | 654225126b |
15 | 36646a20a6 |
hex | 1eaee4342f |
131783210031 has 8 divisors (see below), whose sum is σ = 191684669184. Its totient is φ = 79868612120.
The previous prime is 131783209997. The next prime is 131783210047. The reversal of 131783210031 is 130012387131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131783210031 - 27 = 131783209903 is a prime.
It is a super-2 number, since 2×1317832100312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131783210081) 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, 1996715271 + ... + 1996715336.
It is an arithmetic number, because the mean of its divisors is an integer number (23960583648).
Almost surely, 2131783210031 is an apocalyptic number.
131783210031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
131783210031 is a deficient number, since it is larger than the sum of its proper divisors (59901459153).
131783210031 is a wasteful number, since it uses less digits than its factorization.
131783210031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3993430621.
The product of its (nonzero) digits is 3024, while the sum is 30.
Adding to 131783210031 its reverse (130012387131), we get a palindrome (261795597162).
The spelling of 131783210031 in words is "one hundred thirty-one billion, seven hundred eighty-three million, two hundred ten thousand, thirty-one".
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