Base | Representation |
---|---|
bin | 1111100100101… |
… | …11000100110110 |
3 | 100002211022110010 |
4 | 13302113010312 |
5 | 231421022410 |
6 | 20544041050 |
7 | 3144304065 |
oct | 762270466 |
9 | 302738403 |
10 | 130642230 |
11 | 67820494 |
12 | 37903186 |
13 | 210b1bc4 |
14 | 134ca1dc |
15 | b708c20 |
hex | 7c97136 |
130642230 has 16 divisors (see below), whose sum is σ = 313541424. Its totient is φ = 34837920.
The previous prime is 130642223. The next prime is 130642247. The reversal of 130642230 is 32246031.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 130642197 and 130642206.
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, 2177341 + ... + 2177400.
It is an arithmetic number, because the mean of its divisors is an integer number (19596339).
Almost surely, 2130642230 is an apocalyptic number.
130642230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130642230 is an abundant number, since it is smaller than the sum of its proper divisors (182899194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130642230 is a wasteful number, since it uses less digits than its factorization.
130642230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4354751.
The product of its (nonzero) digits is 864, while the sum is 21.
The square root of 130642230 is about 11429.8832015030. The cubic root of 130642230 is about 507.4125388200.
Adding to 130642230 its reverse (32246031), we get a palindrome (162888261).
The spelling of 130642230 in words is "one hundred thirty million, six hundred forty-two thousand, two hundred thirty".
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