Base | Representation |
---|---|
bin | 11100001110101001011110 |
3 | 111220221221012 |
4 | 130032221132 |
5 | 3343300110 |
6 | 422335222 |
7 | 116620301 |
oct | 34165136 |
9 | 14827835 |
10 | 7400030 |
11 | 41a4830 |
12 | 258a512 |
13 | 16c1321 |
14 | da8b38 |
15 | 9b2905 |
hex | 70ea5e |
7400030 has 16 divisors (see below), whose sum is σ = 14531184. Its totient is φ = 2690880.
The previous prime is 7400023. The next prime is 7400051. The reversal of 7400030 is 300047.
It is a junction number, because it is equal to n+sod(n) for n = 7399978 and 7400014.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 33527 + ... + 33746.
It is an arithmetic number, because the mean of its divisors is an integer number (908199).
Almost surely, 27400030 is an apocalyptic number.
7400030 is a deficient number, since it is larger than the sum of its proper divisors (7131154).
7400030 is a wasteful number, since it uses less digits than its factorization.
7400030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 67291.
The product of its (nonzero) digits is 84, while the sum is 14.
The square root of 7400030 is about 2720.2996158512. The cubic root of 7400030 is about 194.8697793743.
Adding to 7400030 its reverse (300047), we get a palindrome (7700077).
The spelling of 7400030 in words is "seven million, four hundred thousand, thirty".
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