Base | Representation |
---|---|
bin | 11000011100000010… |
… | …10010011000001011 |
3 | 1020212100211011120122 |
4 | 30032001102120023 |
5 | 203332222322311 |
6 | 10005521413455 |
7 | 643062116453 |
oct | 141601223013 |
9 | 36770734518 |
10 | 13120120331 |
11 | 5622a6965a |
12 | 2661a9a28b |
13 | 131123b616 |
14 | 8c66b6d63 |
15 | 51bc7d0db |
hex | 30e05260b |
13120120331 has 8 divisors (see below), whose sum is σ = 13817778000. Its totient is φ = 12423175200.
The previous prime is 13120120313. The next prime is 13120120423. The reversal of 13120120331 is 13302102131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13120120331 is a prime.
It is a super-2 number, since 2×131201203312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13120120631) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140120 + ... + 214181.
It is an arithmetic number, because the mean of its divisors is an integer number (1727222250).
Almost surely, 213120120331 is an apocalyptic number.
13120120331 is a deficient number, since it is larger than the sum of its proper divisors (697657669).
13120120331 is a wasteful number, since it uses less digits than its factorization.
13120120331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 356269.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 13120120331 its reverse (13302102131), we get a palindrome (26422222462).
The spelling of 13120120331 in words is "thirteen billion, one hundred twenty million, one hundred twenty thousand, three hundred thirty-one".
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