Base | Representation |
---|---|
bin | 1101001010101010… |
… | …11001000001100101 |
3 | 200020122020000212001 |
4 | 12211111121001211 |
5 | 103434104043321 |
6 | 3125233125301 |
7 | 340112640301 |
oct | 64525310145 |
9 | 20218200761 |
10 | 7068815461 |
11 | 2aa8186754 |
12 | 14533b9831 |
13 | 88864b556 |
14 | 4b0b50d01 |
15 | 2b58adc91 |
hex | 1a5559065 |
7068815461 has 4 divisors (see below), whose sum is σ = 7440858400. Its totient is φ = 6696772524.
The previous prime is 7068815459. The next prime is 7068815489. The reversal of 7068815461 is 1645188607.
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: 1645188607 = 127 ⋅12954241.
It is a cyclic number.
It is not a de Polignac number, because 7068815461 - 21 = 7068815459 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 (7068815161) 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, 186021441 + ... + 186021478.
It is an arithmetic number, because the mean of its divisors is an integer number (1860214600).
Almost surely, 27068815461 is an apocalyptic number.
It is an amenable number.
7068815461 is a deficient number, since it is larger than the sum of its proper divisors (372042939).
7068815461 is a wasteful number, since it uses less digits than its factorization.
7068815461 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 372042938.
The product of its (nonzero) digits is 322560, while the sum is 46.
The square root of 7068815461 is about 84076.2479003434. The cubic root of 7068815461 is about 1919.1792879955.
The spelling of 7068815461 in words is "seven billion, sixty-eight million, eight hundred fifteen thousand, four hundred sixty-one".
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