Base | Representation |
---|---|
bin | 111001010101… |
… | …111011011110 |
3 | 1001021201001212 |
4 | 321111323132 |
5 | 12322011110 |
6 | 1254104422 |
7 | 241525106 |
oct | 71257336 |
9 | 31251055 |
10 | 15032030 |
11 | 8537872 |
12 | 504b112 |
13 | 31640c0 |
14 | 1dd4206 |
15 | 14bde05 |
hex | e55ede |
15032030 has 16 divisors (see below), whose sum is σ = 29139264. Its totient is φ = 5550240.
The previous prime is 15031997. The next prime is 15032089. The reversal of 15032030 is 3023051.
It is a junction number, because it is equal to n+sod(n) for n = 15031996 and 15032014.
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, 57686 + ... + 57945.
It is an arithmetic number, because the mean of its divisors is an integer number (1821204).
Almost surely, 215032030 is an apocalyptic number.
15032030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15032030 is a deficient number, since it is larger than the sum of its proper divisors (14107234).
15032030 is a wasteful number, since it uses less digits than its factorization.
15032030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115651.
The product of its (nonzero) digits is 90, while the sum is 14.
The square root of 15032030 is about 3877.1161963501. The cubic root of 15032030 is about 246.7966221309.
Adding to 15032030 its reverse (3023051), we get a palindrome (18055081).
The spelling of 15032030 in words is "fifteen million, thirty-two thousand, thirty".
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