Base | Representation |
---|---|
bin | 1110000110100110110101… |
… | …01001010001100101010011 |
3 | 11001210211211102212120022121 |
4 | 13003103122221101211103 |
5 | 13031110301011131011 |
6 | 145543154511315111 |
7 | 6350432165362261 |
oct | 703233251214523 |
9 | 131724742776277 |
10 | 31013332130131 |
11 | 997775352070a |
12 | 358a71221ba97 |
13 | 143c710846c90 |
14 | 7930a62d7431 |
15 | 38badbbeae71 |
hex | 1c34daa51953 |
31013332130131 has 8 divisors (see below), whose sum is σ = 33424724024384. Its totient is φ = 28605618944640.
The previous prime is 31013332130111. The next prime is 31013332130149. The reversal of 31013332130131 is 13103123331013.
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 31013332130131 - 219 = 31013331605843 is a prime.
It is a super-2 number, since 2×310133321301312 (a number of 28 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 = 31013332130096 and 31013332130105.
It is not an unprimeable number, because it can be changed into a prime (31013332130111) 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, 919659675 + ... + 919693396.
It is an arithmetic number, because the mean of its divisors is an integer number (4178090503048).
Almost surely, 231013332130131 is an apocalyptic number.
31013332130131 is a deficient number, since it is larger than the sum of its proper divisors (2411391894253).
31013332130131 is a wasteful number, since it uses less digits than its factorization.
31013332130131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1839354381.
The product of its (nonzero) digits is 1458, while the sum is 25.
Adding to 31013332130131 its reverse (13103123331013), we get a palindrome (44116455461144).
The spelling of 31013332130131 in words is "thirty-one trillion, thirteen billion, three hundred thirty-two million, one hundred thirty thousand, one hundred thirty-one".
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