Base | Representation |
---|---|
bin | 11110010100101100001101 |
3 | 112221212001222 |
4 | 132110230031 |
5 | 4013332234 |
6 | 442213125 |
7 | 124365062 |
oct | 36245415 |
9 | 15855058 |
10 | 7949069 |
11 | 453a287 |
12 | 27b41a5 |
13 | 18541bb |
14 | 10acc69 |
15 | a7042e |
hex | 794b0d |
7949069 has 4 divisors (see below), whose sum is σ = 7978044. Its totient is φ = 7920096.
The previous prime is 7949017. The next prime is 7949083. The reversal of 7949069 is 9609497.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9609497 = 19 ⋅505763.
It can be written as a sum of positive squares in 2 ways, for example, as 990025 + 6959044 = 995^2 + 2638^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-7949069 is a prime.
It is a super-2 number, since 2×79490692 = 126375395933522, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7949009) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14072 + ... + 14625.
It is an arithmetic number, because the mean of its divisors is an integer number (1994511).
Almost surely, 27949069 is an apocalyptic number.
It is an amenable number.
7949069 is a deficient number, since it is larger than the sum of its proper divisors (28975).
7949069 is a wasteful number, since it uses less digits than its factorization.
7949069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28974.
The product of its (nonzero) digits is 122472, while the sum is 44.
The square root of 7949069 is about 2819.4093353041. The cubic root of 7949069 is about 199.5746711179.
The spelling of 7949069 in words is "seven million, nine hundred forty-nine thousand, sixty-nine".
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