Base | Representation |
---|---|
bin | 11011000011000111100101 |
3 | 111100020120002 |
4 | 123003013211 |
5 | 3303400121 |
6 | 411551045 |
7 | 114161324 |
oct | 33030745 |
9 | 14306502 |
10 | 7090661 |
11 | 4003356 |
12 | 245b485 |
13 | 1613576 |
14 | d280bb |
15 | 950e0b |
hex | 6c31e5 |
7090661 has 4 divisors (see below), whose sum is σ = 7319424. Its totient is φ = 6861900.
The previous prime is 7090651. The next prime is 7090673. The reversal of 7090661 is 1660907.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1660907 = 197 ⋅8431.
It is a cyclic number.
It is not a de Polignac number, because 7090661 - 26 = 7090597 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7090631) 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, 114335 + ... + 114396.
It is an arithmetic number, because the mean of its divisors is an integer number (1829856).
Almost surely, 27090661 is an apocalyptic number.
It is an amenable number.
7090661 is a deficient number, since it is larger than the sum of its proper divisors (228763).
7090661 is a wasteful number, since it uses less digits than its factorization.
7090661 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228762.
The product of its (nonzero) digits is 2268, while the sum is 29.
The square root of 7090661 is about 2662.8295101264. The cubic root of 7090661 is about 192.1154271933.
The spelling of 7090661 in words is "seven million, ninety thousand, six hundred sixty-one".
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