Base | Representation |
---|---|
bin | 111001001110… |
… | …000111110010 |
3 | 1001020002012102 |
4 | 321032013302 |
5 | 12320000200 |
6 | 1253300402 |
7 | 241332632 |
oct | 71160762 |
9 | 31202172 |
10 | 15000050 |
11 | 851583a |
12 | 5034702 |
13 | 3152690 |
14 | 1dc66c2 |
15 | 14b46d5 |
hex | e4e1f2 |
15000050 has 48 divisors (see below), whose sum is σ = 30748032. Its totient is φ = 5409600.
The previous prime is 15000031. The next prime is 15000053. The reversal of 15000050 is 5000051.
It is a junction number, because it is equal to n+sod(n) for n = 14999995 and 15000040.
It is not an unprimeable number, because it can be changed into a prime (15000053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30305 + ... + 30795.
It is an arithmetic number, because the mean of its divisors is an integer number (640584).
Almost surely, 215000050 is an apocalyptic number.
15000050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15000050 is an abundant number, since it is smaller than the sum of its proper divisors (15747982).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15000050 is a wasteful number, since it uses less digits than its factorization.
15000050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 563 (or 558 counting only the distinct ones).
The product of its (nonzero) digits is 25, while the sum is 11.
The square root of 15000050 is about 3872.9898011743. The cubic root of 15000050 is about 246.6214814563.
Subtracting from 15000050 its reverse (5000051), we obtain a palindrome (9999999).
The spelling of 15000050 in words is "fifteen million, fifty", and thus it is an aban number and an uban number.
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