Base | Representation |
---|---|
bin | 1011111100010101101001… |
… | …0011101101011101000111 |
3 | 1201111100000000011101001121 |
4 | 2333011122103231131013 |
5 | 3210120224403441411 |
6 | 43532223121534411 |
7 | 2523462060365410 |
oct | 277053223553507 |
9 | 51440000141047 |
10 | 13131230140231 |
11 | 4202a180a1445 |
12 | 1580b064a4407 |
13 | 743367678178 |
14 | 3357aaa28807 |
15 | 17b8904db571 |
hex | bf15a4ed747 |
13131230140231 has 8 divisors (see below), whose sum is σ = 15007293255200. Its totient is φ = 11255210299008.
The previous prime is 13131230140213. The next prime is 13131230140247. The reversal of 13131230140231 is 13204103213131.
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 13131230140231 - 213 = 13131230132039 is a prime.
It is a super-2 number, since 2×131312301402312 (a number of 27 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13131230140196 and 13131230140205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13131230140201) 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, 10165566 + ... + 11384251.
It is an arithmetic number, because the mean of its divisors is an integer number (1875911656900).
Almost surely, 213131230140231 is an apocalyptic number.
13131230140231 is a deficient number, since it is larger than the sum of its proper divisors (1876063114969).
13131230140231 is an equidigital number, since it uses as much as digits as its factorization.
13131230140231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21636873.
The product of its (nonzero) digits is 1296, while the sum is 25.
Adding to 13131230140231 its reverse (13204103213131), we get a palindrome (26335333353362).
The spelling of 13131230140231 in words is "thirteen trillion, one hundred thirty-one billion, two hundred thirty million, one hundred forty thousand, two hundred thirty-one".
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