Base | Representation |
---|---|
bin | 1101001101010001… |
… | …10011100011100001 |
3 | 200022011100222012212 |
4 | 12212220303203201 |
5 | 104010203311311 |
6 | 3131333531505 |
7 | 340466542340 |
oct | 64650634341 |
9 | 20264328185 |
10 | 7090682081 |
11 | 300956143a |
12 | 145a7a3b95 |
13 | 890036492 |
14 | 4b3a03b57 |
15 | 2b777cc8b |
hex | 1a6a338e1 |
7090682081 has 4 divisors (see below), whose sum is σ = 8103636672. Its totient is φ = 6077727492.
The previous prime is 7090682041. The next prime is 7090682083. The reversal of 7090682081 is 1802860907.
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.
It is a cyclic number.
It is not a de Polignac number, because 7090682081 - 214 = 7090665697 is a prime.
It is a super-2 number, since 2×70906820812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (7090682083) 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, 506477285 + ... + 506477298.
It is an arithmetic number, because the mean of its divisors is an integer number (2025909168).
Almost surely, 27090682081 is an apocalyptic number.
It is an amenable number.
7090682081 is a deficient number, since it is larger than the sum of its proper divisors (1012954591).
7090682081 is a wasteful number, since it uses less digits than its factorization.
7090682081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1012954590.
The product of its (nonzero) digits is 48384, while the sum is 41.
The square root of 7090682081 is about 84206.1879020776. The cubic root of 7090682081 is about 1921.1561758371.
The spelling of 7090682081 in words is "seven billion, ninety million, six hundred eighty-two thousand, eighty-one".
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