Base | Representation |
---|---|
bin | 1111100100100… |
… | …01110110111100 |
3 | 100002210020010122 |
4 | 13302101312330 |
5 | 231414331420 |
6 | 20543354112 |
7 | 3144154556 |
oct | 762216674 |
9 | 302706118 |
10 | 130620860 |
11 | 67806427 |
12 | 378b2938 |
13 | 210a5266 |
14 | 134c24d6 |
15 | b702725 |
hex | 7c91dbc |
130620860 has 48 divisors (see below), whose sum is σ = 292408704. Its totient is φ = 48841728.
The previous prime is 130620859. The next prime is 130620899. The reversal of 130620860 is 68026031.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52157 + ... + 54603.
It is an arithmetic number, because the mean of its divisors is an integer number (6091848).
Almost surely, 2130620860 is an apocalyptic number.
130620860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130620860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146204352).
130620860 is an abundant number, since it is smaller than the sum of its proper divisors (161787844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130620860 is a wasteful number, since it uses less digits than its factorization.
130620860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2630 (or 2628 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 26.
The square root of 130620860 is about 11428.9483330707. The cubic root of 130620860 is about 507.3848703873.
Adding to 130620860 its reverse (68026031), we get a palindrome (198646891).
The spelling of 130620860 in words is "one hundred thirty million, six hundred twenty thousand, eight hundred sixty".
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