Base | Representation |
---|---|
bin | 1010011101000010… |
… | …0101010011011001 |
3 | 21020120020210101110 |
4 | 2213100211103121 |
5 | 21221333022134 |
6 | 1142241210533 |
7 | 126352546335 |
oct | 24720452331 |
9 | 7216223343 |
10 | 2806142169 |
11 | 120aaa3166 |
12 | 663930a49 |
13 | 35949ab6c |
14 | 1c89827c5 |
15 | 11654e7e9 |
hex | a74254d9 |
2806142169 has 8 divisors (see below), whose sum is σ = 3765354880. Its totient is φ = 1858845456.
The previous prime is 2806142149. The next prime is 2806142189. The reversal of 2806142169 is 9612416082.
It is an interprime number because it is at equal distance from previous prime (2806142149) and next prime (2806142189).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2806142169 - 28 = 2806141913 is a prime.
It is a super-2 number, since 2×28061421692 = 15748867745280049122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2806142149) 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, 2978449 + ... + 2979390.
It is an arithmetic number, because the mean of its divisors is an integer number (470669360).
Almost surely, 22806142169 is an apocalyptic number.
It is an amenable number.
2806142169 is a deficient number, since it is larger than the sum of its proper divisors (959212711).
2806142169 is a wasteful number, since it uses less digits than its factorization.
2806142169 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5957999.
The product of its (nonzero) digits is 41472, while the sum is 39.
The square root of 2806142169 is about 52973.0324693612. The cubic root of 2806142169 is about 1410.4896056358.
The spelling of 2806142169 in words is "two billion, eight hundred six million, one hundred forty-two thousand, one hundred sixty-nine".
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