Base | Representation |
---|---|
bin | 1000010101110… |
… | …10001111100111 |
3 | 11212122210020200 |
4 | 10022322033213 |
5 | 120403000441 |
6 | 10535401543 |
7 | 1506503610 |
oct | 412721747 |
9 | 155583220 |
10 | 69968871 |
11 | 3654a715 |
12 | 1b5232b3 |
13 | 1165a5cb |
14 | 9414c07 |
15 | 62217b6 |
hex | 42ba3e7 |
69968871 has 12 divisors (see below), whose sum is σ = 115504272. Its totient is φ = 39982176.
The previous prime is 69968797. The next prime is 69968879. The reversal of 69968871 is 17886996.
It is not a de Polignac number, because 69968871 - 29 = 69968359 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69968879) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555246 + ... + 555371.
It is an arithmetic number, because the mean of its divisors is an integer number (9625356).
Almost surely, 269968871 is an apocalyptic number.
69968871 is a deficient number, since it is larger than the sum of its proper divisors (45535401).
69968871 is a wasteful number, since it uses less digits than its factorization.
69968871 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1110630 (or 1110627 counting only the distinct ones).
The product of its digits is 1306368, while the sum is 54.
The square root of 69968871 is about 8364.7397449054. The cubic root of 69968871 is about 412.0674297371.
The spelling of 69968871 in words is "sixty-nine million, nine hundred sixty-eight thousand, eight hundred seventy-one".
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