Base | Representation |
---|---|
bin | 1101100011110110… |
… | …10101111010010001 |
3 | 200210100202221002110 |
4 | 12301323111322101 |
5 | 104402200401034 |
6 | 3202221335533 |
7 | 345256515300 |
oct | 66173257221 |
9 | 20710687073 |
10 | 7280090769 |
11 | 30a646aa46 |
12 | 14b21075a9 |
13 | 8c0352a23 |
14 | 4d0c2a437 |
15 | 2c91e3de9 |
hex | 1b1ed5e91 |
7280090769 has 12 divisors (see below), whose sum is σ = 11291569584. Its totient is φ = 4160051784.
The previous prime is 7280090767. The next prime is 7280090773. The reversal of 7280090769 is 9670900827.
It is not a de Polignac number, because 7280090769 - 21 = 7280090767 is a prime.
It is a super-2 number, since 2×72800907692 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7280090767) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24762067 + ... + 24762360.
It is an arithmetic number, because the mean of its divisors is an integer number (940964132).
Almost surely, 27280090769 is an apocalyptic number.
It is an amenable number.
7280090769 is a deficient number, since it is larger than the sum of its proper divisors (4011478815).
7280090769 is a wasteful number, since it uses less digits than its factorization.
7280090769 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49524444 (or 49524437 counting only the distinct ones).
The product of its (nonzero) digits is 381024, while the sum is 48.
The square root of 7280090769 is about 85323.4479436925. The cubic root of 7280090769 is about 1938.1122715883.
The spelling of 7280090769 in words is "seven billion, two hundred eighty million, ninety thousand, seven hundred sixty-nine".
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