Base | Representation |
---|---|
bin | 111101000000101101… |
… | …0000001110101111010 |
3 | 110112012000102211220200 |
4 | 1322001122001311322 |
5 | 4121312121244114 |
6 | 140104555303030 |
7 | 12315541333452 |
oct | 1720132016572 |
9 | 415160384820 |
10 | 131020103034 |
11 | 50624483697 |
12 | 2148644aa76 |
13 | c48032ccb2 |
14 | 64acb6ad62 |
15 | 361c6b6409 |
hex | 1e81681d7a |
131020103034 has 12 divisors (see below), whose sum is σ = 283876889946. Its totient is φ = 43673367672.
The previous prime is 131020103033. The next prime is 131020103051. The reversal of 131020103034 is 430301020131.
It can be written as a sum of positive squares in only one way, i.e., 88914294225 + 42105808809 = 298185^2 + 205197^2 .
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7278894613 = 131020103034 / (1 + 3 + 1 + 0 + 2 + 0 + 1 + 0 + 3 + 0 + 3 + 4).
It is a junction number, because it is equal to n+sod(n) for n = 131020102998 and 131020103016.
It is not an unprimeable number, because it can be changed into a prime (131020103033) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3639447289 + ... + 3639447324.
Almost surely, 2131020103034 is an apocalyptic number.
131020103034 is an abundant number, since it is smaller than the sum of its proper divisors (152856786912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131020103034 is a wasteful number, since it uses less digits than its factorization.
131020103034 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7278894621 (or 7278894618 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 131020103034 its reverse (430301020131), we get a palindrome (561321123165).
The spelling of 131020103034 in words is "one hundred thirty-one billion, twenty million, one hundred three thousand, thirty-four".
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