Base | Representation |
---|---|
bin | 1111100111010… |
… | …01011000000000 |
3 | 100010110102212020 |
4 | 13303221120000 |
5 | 232012314303 |
6 | 20555201440 |
7 | 3150206634 |
oct | 763513000 |
9 | 303412766 |
10 | 130979328 |
11 | 67a30787 |
12 | 37a46280 |
13 | 2119c47c |
14 | 13576dc4 |
15 | b773a53 |
hex | 7ce9600 |
130979328 has 80 divisors (see below), whose sum is σ = 351339120. Its totient is φ = 43360256.
The previous prime is 130979287. The next prime is 130979353. The reversal of 130979328 is 823979031.
It is a self number, because there is not a number n which added to its sum of digits gives 130979328.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413026 + ... + 413342.
It is an arithmetic number, because the mean of its divisors is an integer number (4391739).
Almost surely, 2130979328 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130979328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175669560).
130979328 is an abundant number, since it is smaller than the sum of its proper divisors (220359792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130979328 is an equidigital number, since it uses as much as digits as its factorization.
130979328 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 607 (or 591 counting only the distinct ones).
The product of its (nonzero) digits is 81648, while the sum is 42.
The square root of 130979328 is about 11444.6200461177. The cubic root of 130979328 is about 507.8485919083.
The spelling of 130979328 in words is "one hundred thirty million, nine hundred seventy-nine thousand, three hundred twenty-eight".
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