Base | Representation |
---|---|
bin | 111101000110011101… |
… | …1011100011010111111 |
3 | 110112200111011222000011 |
4 | 1322030323130122333 |
5 | 4122211113141111 |
6 | 140140102444051 |
7 | 12323406412522 |
oct | 1721473343277 |
9 | 415614158004 |
10 | 131213412031 |
11 | 50713606599 |
12 | 2151b133627 |
13 | c4b13b3910 |
14 | 64ca6cabb9 |
15 | 362e64d021 |
hex | 1e8cedc6bf |
131213412031 has 8 divisors (see below), whose sum is σ = 141508340064. Its totient is φ = 120947282400.
The previous prime is 131213411941. The next prime is 131213412037. The reversal of 131213412031 is 130214312131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131213412031 - 29 = 131213411519 is a prime.
It is a super-2 number, since 2×1312134120312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131213411993 and 131213412011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131213412037) 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, 7190131 + ... + 7208356.
It is an arithmetic number, because the mean of its divisors is an integer number (17688542508).
Almost surely, 2131213412031 is an apocalyptic number.
131213412031 is a deficient number, since it is larger than the sum of its proper divisors (10294928033).
131213412031 is a wasteful number, since it uses less digits than its factorization.
131213412031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14399201.
The product of its (nonzero) digits is 432, while the sum is 22.
Adding to 131213412031 its reverse (130214312131), we get a palindrome (261427724162).
The spelling of 131213412031 in words is "one hundred thirty-one billion, two hundred thirteen million, four hundred twelve thousand, thirty-one".
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