Base | Representation |
---|---|
bin | 11000001111000010… |
… | …00100010111010111 |
3 | 1020120202111211202110 |
4 | 30013201010113113 |
5 | 203121304323111 |
6 | 5551023042103 |
7 | 640265524524 |
oct | 140741042727 |
9 | 36522454673 |
10 | 13011011031 |
11 | 5577416187 |
12 | 2631440333 |
13 | 12c47587c5 |
14 | 8b5dd414b |
15 | 5123c95a6 |
hex | 3078445d7 |
13011011031 has 8 divisors (see below), whose sum is σ = 17349813760. Its totient is φ = 8673107832.
The previous prime is 13011011011. The next prime is 13011011063.
13011011031 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13011011031 - 219 = 13010486743 is a prime.
It is a super-2 number, since 2×130110110312 (a number of 21 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 = 13011010998 and 13011011016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13011011011) 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, 190375 + ... + 249528.
It is an arithmetic number, because the mean of its divisors is an integer number (2168726720).
Almost surely, 213011011031 is an apocalyptic number.
13011011031 is a deficient number, since it is larger than the sum of its proper divisors (4338802729).
13011011031 is an equidigital number, since it uses as much as digits as its factorization.
13011011031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 449765.
The product of its (nonzero) digits is 9, while the sum is 12.
It can be divided in two parts, 130110 and 11031, that added together give a palindrome (141141).
The spelling of 13011011031 in words is "thirteen billion, eleven million, eleven thousand, thirty-one".
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