Base | Representation |
---|---|
bin | 11110011100010111001010 |
3 | 120000110011201 |
4 | 132130113022 |
5 | 4020333430 |
6 | 443014414 |
7 | 124555510 |
oct | 36342712 |
9 | 16013151 |
10 | 7980490 |
11 | 4560951 |
12 | 280a40a |
13 | 18655ab |
14 | 10ba4b0 |
15 | a798ca |
hex | 79c5ca |
7980490 has 32 divisors (see below), whose sum is σ = 16536960. Its totient is φ = 2716224.
The previous prime is 7980473. The next prime is 7980491. The reversal of 7980490 is 940897.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (7980491) 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 15 ways as a sum of consecutive naturals, for example, 11781 + ... + 12439.
It is an arithmetic number, because the mean of its divisors is an integer number (516780).
Almost surely, 27980490 is an apocalyptic number.
7980490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
7980490 is an abundant number, since it is smaller than the sum of its proper divisors (8556470).
7980490 is a wasteful number, since it uses less digits than its factorization.
7980490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 846.
The product of its (nonzero) digits is 18144, while the sum is 37.
The square root of 7980490 is about 2824.9761060936. The cubic root of 7980490 is about 199.8372843206.
The spelling of 7980490 in words is "seven million, nine hundred eighty thousand, four hundred ninety".
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