Base | Representation |
---|---|
bin | 1111100001100… |
… | …11001010110100 |
3 | 100002001112002220 |
4 | 13300303022310 |
5 | 231314424022 |
6 | 20531202340 |
7 | 3140651040 |
oct | 760631264 |
9 | 302045086 |
10 | 130233012 |
11 | 67570a98 |
12 | 377463b0 |
13 | 20c9a870 |
14 | 13421020 |
15 | b67785c |
hex | 7c332b4 |
130233012 has 96 divisors (see below), whose sum is σ = 376320000. Its totient is φ = 34134912.
The previous prime is 130232989. The next prime is 130233013. The reversal of 130233012 is 210332031.
It is a junction number, because it is equal to n+sod(n) for n = 130232982 and 130233000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130233013) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260739 + ... + 261237.
It is an arithmetic number, because the mean of its divisors is an integer number (3920000).
Almost surely, 2130233012 is an apocalyptic number.
130233012 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 130233012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188160000).
130233012 is an abundant number, since it is smaller than the sum of its proper divisors (246086988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130233012 is a wasteful number, since it uses less digits than its factorization.
130233012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 765 (or 763 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 130233012 is about 11411.9679284513. The cubic root of 130233012 is about 506.8821857439.
Adding to 130233012 its reverse (210332031), we get a palindrome (340565043).
The spelling of 130233012 in words is "one hundred thirty million, two hundred thirty-three thousand, twelve".
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