Base | Representation |
---|---|
bin | 11110010100110101110010 |
3 | 112221212220200 |
4 | 132110311302 |
5 | 4013342212 |
6 | 442220030 |
7 | 124366626 |
oct | 36246562 |
9 | 15855820 |
10 | 7949682 |
11 | 453a794 |
12 | 27b4616 |
13 | 1854570 |
14 | 10ad186 |
15 | a706dc |
hex | 794d72 |
7949682 has 48 divisors (see below), whose sum is σ = 18928728. Its totient is φ = 2396160.
The previous prime is 7949681. The next prime is 7949723. The reversal of 7949682 is 2869497.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 7502121 + 447561 = 2739^2 + 669^2 .
It is a super-2 number, since 2×79496822 = 126394887802248, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7949681) 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, 12082 + ... + 12722.
Almost surely, 27949682 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7949682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9464364).
7949682 is an abundant number, since it is smaller than the sum of its proper divisors (10979046).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7949682 is a wasteful number, since it uses less digits than its factorization.
7949682 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 715 (or 712 counting only the distinct ones).
The product of its digits is 217728, while the sum is 45.
The square root of 7949682 is about 2819.5180439217. The cubic root of 7949682 is about 199.5798011161.
The spelling of 7949682 in words is "seven million, nine hundred forty-nine thousand, six hundred eighty-two".
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