Base | Representation |
---|---|
bin | 1111100000110… |
… | …10110000000000 |
3 | 100001212102220110 |
4 | 13300122300000 |
5 | 231303223432 |
6 | 20525111320 |
7 | 3140053323 |
oct | 760326000 |
9 | 301772813 |
10 | 130132992 |
11 | 67502930 |
12 | 376b8540 |
13 | 20c64192 |
14 | 133d67ba |
15 | b657dcc |
hex | 7c1ac00 |
130132992 has 88 divisors (see below), whose sum is σ = 378482112. Its totient is φ = 39424000.
The previous prime is 130132979. The next prime is 130132993. The reversal of 130132992 is 299231031.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (88).
It is not an unprimeable number, because it can be changed into a prime (130132993) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31867 + ... + 35717.
Almost surely, 2130132992 is an apocalyptic number.
130132992 is a gapful number since it is divisible by the number (12) 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 130132992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189241056).
130132992 is an abundant number, since it is smaller than the sum of its proper divisors (248349120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130132992 is a wasteful number, since it uses less digits than its factorization.
130132992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3885 (or 3867 counting only the distinct ones).
The product of its (nonzero) digits is 2916, while the sum is 30.
The square root of 130132992 is about 11407.5848451809. The cubic root of 130132992 is about 506.7523893124.
The spelling of 130132992 in words is "one hundred thirty million, one hundred thirty-two thousand, nine hundred ninety-two".
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