Base | Representation |
---|---|
bin | 1000001111001… |
… | …11000011000101 |
3 | 11211000211121111 |
4 | 10013213003011 |
5 | 120142310223 |
6 | 10505045021 |
7 | 1466241562 |
oct | 407470305 |
9 | 154024544 |
10 | 69103813 |
11 | 36009799 |
12 | 1b186771 |
13 | 1141693c |
14 | 926b869 |
15 | 610030d |
hex | 41e70c5 |
69103813 has 2 divisors, whose sum is σ = 69103814. Its totient is φ = 69103812.
The previous prime is 69103807. The next prime is 69103823. The reversal of 69103813 is 31830196.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 68856804 + 247009 = 8298^2 + 497^2 .
It is a cyclic number.
It is not a de Polignac number, because 69103813 - 217 = 68972741 is a prime.
It is a super-2 number, since 2×691038132 = 9550673942277938, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (69103823) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34551906 + 34551907.
It is an arithmetic number, because the mean of its divisors is an integer number (34551907).
Almost surely, 269103813 is an apocalyptic number.
It is an amenable number.
69103813 is a deficient number, since it is larger than the sum of its proper divisors (1).
69103813 is an equidigital number, since it uses as much as digits as its factorization.
69103813 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3888, while the sum is 31.
The square root of 69103813 is about 8312.8703225781. The cubic root of 69103813 is about 410.3621883811.
The spelling of 69103813 in words is "sixty-nine million, one hundred three thousand, eight hundred thirteen".
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