Base | Representation |
---|---|
bin | 11010110011111100001010 |
3 | 111020002021110 |
4 | 122303330022 |
5 | 3244402430 |
6 | 410351150 |
7 | 113512140 |
oct | 32637412 |
9 | 14202243 |
10 | 7028490 |
11 | 3a70677 |
12 | 242b4b6 |
13 | 15c1191 |
14 | d0d590 |
15 | 93c7b0 |
hex | 6b3f0a |
7028490 has 32 divisors (see below), whose sum is σ = 19278720. Its totient is φ = 1606464.
The previous prime is 7028477. The next prime is 7028519. The reversal of 7028490 is 948207.
It is a Harshad number since it is a multiple of its sum of digits (30).
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 15 ways as a sum of consecutive naturals, for example, 16525 + ... + 16944.
It is an arithmetic number, because the mean of its divisors is an integer number (602460).
Almost surely, 27028490 is an apocalyptic number.
7028490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
7028490 is an abundant number, since it is smaller than the sum of its proper divisors (12250230).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7028490 is a wasteful number, since it uses less digits than its factorization.
7028490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33486.
The product of its (nonzero) digits is 4032, while the sum is 30.
The square root of 7028490 is about 2651.1299477770. The cubic root of 7028490 is about 191.5522879848.
The spelling of 7028490 in words is "seven million, twenty-eight thousand, four hundred ninety".
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