Base | Representation |
---|---|
bin | 111101010010… |
… | …0001111101110 |
3 | 2020110101010010 |
4 | 1322210033232 |
5 | 31211130110 |
6 | 3104354050 |
7 | 540046362 |
oct | 172441756 |
9 | 66411103 |
10 | 32130030 |
11 | 17155849 |
12 | a915926 |
13 | 686c66a |
14 | 43a52a2 |
15 | 2c4a020 |
hex | 1ea43ee |
32130030 has 32 divisors (see below), whose sum is σ = 78908544. Its totient is φ = 8368416.
The previous prime is 32130013. The next prime is 32130037. The reversal of 32130030 is 3003123.
Added to its reverse (3003123) it gives a triangular number (35133153 = T8382).
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 32129988 and 32130015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (32130037) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11164 + ... + 13743.
It is an arithmetic number, because the mean of its divisors is an integer number (2465892).
Almost surely, 232130030 is an apocalyptic number.
32130030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
32130030 is an abundant number, since it is smaller than the sum of its proper divisors (46778514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
32130030 is a wasteful number, since it uses less digits than its factorization.
32130030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24960.
The product of its (nonzero) digits is 54, while the sum is 12.
The square root of 32130030 is about 5668.3357345874. The cubic root of 32130030 is about 317.9096495822.
Adding to 32130030 its reverse (3003123), we get a palindrome (35133153).
The spelling of 32130030 in words is "thirty-two million, one hundred thirty thousand, thirty".
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