Base | Representation |
---|---|
bin | 11101111111001001000… |
… | …01010110010101011111 |
3 | 10122111110112210112111211 |
4 | 32333210201112111133 |
5 | 113340104232144411 |
6 | 2105154431525251 |
7 | 134303365054033 |
oct | 16774441262537 |
9 | 3574415715454 |
10 | 1030331131231 |
11 | 367a630767a6 |
12 | 147827989827 |
13 | 7621013b57c |
14 | 37c2284a1c3 |
15 | 1bc0449d221 |
hex | efe485655f |
1030331131231 has 16 divisors (see below), whose sum is σ = 1063979320320. Its totient is φ = 997091665920.
The previous prime is 1030331131223. The next prime is 1030331131237. The reversal of 1030331131231 is 1321311330301.
It is a cyclic number.
It is not a de Polignac number, because 1030331131231 - 23 = 1030331131223 is a prime.
It is a super-2 number, since 2×10303311312312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030331131237) 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, 31689175 + ... + 31721671.
It is an arithmetic number, because the mean of its divisors is an integer number (66498707520).
Almost surely, 21030331131231 is an apocalyptic number.
1030331131231 is a deficient number, since it is larger than the sum of its proper divisors (33648189089).
1030331131231 is a wasteful number, since it uses less digits than its factorization.
1030331131231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38754.
The product of its (nonzero) digits is 486, while the sum is 22.
Adding to 1030331131231 its reverse (1321311330301), we get a palindrome (2351642461532).
The spelling of 1030331131231 in words is "one trillion, thirty billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •