Base | Representation |
---|---|
bin | 1111100010000… |
… | …00110011011100 |
3 | 100002011100201100 |
4 | 13301000303130 |
5 | 231323220420 |
6 | 20532313100 |
7 | 3141302622 |
oct | 761006334 |
9 | 302140640 |
10 | 130288860 |
11 | 675a9a49 |
12 | 37772790 |
13 | 20cba100 |
14 | 13437512 |
15 | b689190 |
hex | 7c40cdc |
130288860 has 108 divisors (see below), whose sum is σ = 428048712. Its totient is φ = 32063616.
The previous prime is 130288849. The next prime is 130288861. The reversal of 130288860 is 68882031.
It is a super-3 number, since 3×1302888603 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130288861) 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 35 ways as a sum of consecutive naturals, for example, 28279 + ... + 32561.
It is an arithmetic number, because the mean of its divisors is an integer number (3963414).
Almost surely, 2130288860 is an apocalyptic number.
130288860 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 130288860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214024356).
130288860 is an abundant number, since it is smaller than the sum of its proper divisors (297759852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130288860 is a wasteful number, since it uses less digits than its factorization.
130288860 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4324 (or 4306 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 130288860 is about 11414.4145710588. The cubic root of 130288860 is about 506.9546310488.
The spelling of 130288860 in words is "one hundred thirty million, two hundred eighty-eight thousand, eight hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •