Base | Representation |
---|---|
bin | 1100110110100010… |
… | …11010010101000101 |
3 | 122210212120022200010 |
4 | 12123101122111011 |
5 | 103112400000234 |
6 | 3100402540433 |
7 | 332663014164 |
oct | 63321322505 |
9 | 18725508603 |
10 | 6900000069 |
11 | 2a209631a6 |
12 | 1406967719 |
13 | 85c6924a1 |
14 | 4965693db |
15 | 2a5b646e9 |
hex | 19b45a545 |
6900000069 has 16 divisors (see below), whose sum is σ = 10164707712. Its totient is φ = 4141175808.
The previous prime is 6900000049. The next prime is 6900000089. The reversal of 6900000069 is 9600000096.
It is an interprime number because it is at equal distance from previous prime (6900000049) and next prime (6900000089).
It is not a de Polignac number, because 6900000069 - 27 = 6899999941 is a prime.
It is a super-2 number, since 2×69000000692 = 95220001904400009522, which contains 22 as substring.
6900000069 is a strobogrammatic number because it is the same when read upside-down.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 6899999991 and 6900000045.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6900000049) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2940004 + ... + 2942349.
It is an arithmetic number, because the mean of its divisors is an integer number (635294232).
Almost surely, 26900000069 is an apocalyptic number.
6900000069 is a gapful number since it is divisible by the number (69) formed by its first and last digit.
It is an amenable number.
6900000069 is a deficient number, since it is larger than the sum of its proper divisors (3264707643).
6900000069 is a wasteful number, since it uses less digits than its factorization.
6900000069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5882396.
The product of its (nonzero) digits is 2916, while the sum is 30.
The square root of 6900000069 is about 83066.2390445119. The cubic root of 6900000069 is about 1903.7782683092.
It can be divided in two parts, 69000000 and 69, that multiplied together give a square (4761000000 = 690002).
The spelling of 6900000069 in words is "six billion, nine hundred million, sixty-nine", and thus it is an aban number.
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