Base | Representation |
---|---|
bin | 100000001011000101… |
… | …0001011000100101111 |
3 | 20121100002100202122112 |
4 | 1000112022023010233 |
5 | 2112444324223122 |
6 | 51423505034235 |
7 | 4664100604154 |
oct | 1002612130457 |
9 | 217302322575 |
10 | 69091242287 |
11 | 27335228a41 |
12 | 1148262597b |
13 | 66910a59b2 |
14 | 34b605a22b |
15 | 1be59542e2 |
hex | 101628b12f |
69091242287 has 8 divisors (see below), whose sum is σ = 72761698800. Its totient is φ = 65424193344.
The previous prime is 69091242271. The next prime is 69091242293. The reversal of 69091242287 is 78224219096.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 69091242287 - 24 = 69091242271 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 (69091242247) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810212 + ... + 891417.
It is an arithmetic number, because the mean of its divisors is an integer number (9095212350).
Almost surely, 269091242287 is an apocalyptic number.
69091242287 is a deficient number, since it is larger than the sum of its proper divisors (3670456513).
69091242287 is a wasteful number, since it uses less digits than its factorization.
69091242287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1703785.
The product of its (nonzero) digits is 870912, while the sum is 50.
The spelling of 69091242287 in words is "sixty-nine billion, ninety-one million, two hundred forty-two thousand, two hundred eighty-seven".
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