Base | Representation |
---|---|
bin | 1010000001000111… |
… | …0100110001110111 |
3 | 20221101212201211200 |
4 | 2200101310301313 |
5 | 21001342332231 |
6 | 1122455103543 |
7 | 123431232264 |
oct | 24021646167 |
9 | 6841781750 |
10 | 2689027191 |
11 | 115a981a24 |
12 | 630671bb3 |
13 | 33b144166 |
14 | 1b71b826b |
15 | 10b118be6 |
hex | a0474c77 |
2689027191 has 12 divisors (see below), whose sum is σ = 3889780440. Its totient is φ = 1790086320.
The previous prime is 2689027181. The next prime is 2689027199. The reversal of 2689027191 is 1917209862.
It is not a de Polignac number, because 2689027191 - 213 = 2689018999 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2689027199) 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, 209976 + ... + 222413.
It is an arithmetic number, because the mean of its divisors is an integer number (324148370).
Almost surely, 22689027191 is an apocalyptic number.
2689027191 is a deficient number, since it is larger than the sum of its proper divisors (1200753249).
2689027191 is a wasteful number, since it uses less digits than its factorization.
2689027191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 433086 (or 433083 counting only the distinct ones).
The product of its (nonzero) digits is 108864, while the sum is 45.
The square root of 2689027191 is about 51855.8308293291. The cubic root of 2689027191 is about 1390.5877456811.
The spelling of 2689027191 in words is "two billion, six hundred eighty-nine million, twenty-seven thousand, one hundred ninety-one".
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