Base | Representation |
---|---|
bin | 1000010101111… |
… | …10010010110101 |
3 | 11212200122000010 |
4 | 10022332102311 |
5 | 120404013321 |
6 | 10540010433 |
7 | 1506603150 |
oct | 412762265 |
9 | 155618003 |
10 | 69985461 |
11 | 36561127 |
12 | 1b530a19 |
13 | 11665020 |
14 | 941ac97 |
15 | 6226676 |
hex | 42be4b5 |
69985461 has 32 divisors (see below), whose sum is σ = 115395840. Its totient is φ = 36739584.
The previous prime is 69985457. The next prime is 69985471. The reversal of 69985461 is 16458996.
It is not a de Polignac number, because 69985461 - 22 = 69985457 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a self number, because there is not a number n which added to its sum of digits gives 69985461.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69985471) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72961 + ... + 73913.
It is an arithmetic number, because the mean of its divisors is an integer number (3606120).
Almost surely, 269985461 is an apocalyptic number.
It is an amenable number.
69985461 is a deficient number, since it is larger than the sum of its proper divisors (45410379).
69985461 is a wasteful number, since it uses less digits than its factorization.
69985461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1245.
The product of its digits is 466560, while the sum is 48.
The square root of 69985461 is about 8365.7313487824. The cubic root of 69985461 is about 412.0999949733.
The spelling of 69985461 in words is "sixty-nine million, nine hundred eighty-five thousand, four hundred sixty-one".
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