Base | Representation |
---|---|
bin | 1111100111100… |
… | …11010101011100 |
3 | 100010112111211012 |
4 | 13303303111130 |
5 | 232020120444 |
6 | 21000114352 |
7 | 3150436604 |
oct | 763632534 |
9 | 303474735 |
10 | 131020124 |
11 | 67a593a4 |
12 | 37a659b8 |
13 | 211b4c01 |
14 | 13587c04 |
15 | b780b9e |
hex | 7cf355c |
131020124 has 24 divisors (see below), whose sum is σ = 242726400. Its totient is φ = 61709040.
The previous prime is 131020117. The next prime is 131020151. The reversal of 131020124 is 421020131.
It is a junction number, because it is equal to n+sod(n) for n = 131020099 and 131020108.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8789 + ... + 18419.
It is an arithmetic number, because the mean of its divisors is an integer number (10113600).
Almost surely, 2131020124 is an apocalyptic number.
It is an amenable number.
131020124 is a deficient number, since it is larger than the sum of its proper divisors (111706276).
131020124 is a wasteful number, since it uses less digits than its factorization.
131020124 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9833 (or 9831 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 131020124 is about 11446.4022295217. The cubic root of 131020124 is about 507.9013127990.
Adding to 131020124 its reverse (421020131), we get a palindrome (552040255).
The spelling of 131020124 in words is "one hundred thirty-one million, twenty thousand, one hundred twenty-four".
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