Base | Representation |
---|---|
bin | 111110101011001… |
… | …0001110100101001 |
3 | 12102120011001220212 |
4 | 1331112101310221 |
5 | 13301331222134 |
6 | 544402230505 |
7 | 103054065335 |
oct | 17526216451 |
9 | 5376131825 |
10 | 2102992169 |
11 | 98a0a2163 |
12 | 4a8355435 |
13 | 2768c7a85 |
14 | 15d4287c5 |
15 | c4958bce |
hex | 7d591d29 |
2102992169 has 4 divisors (see below), whose sum is σ = 2106457344. Its totient is φ = 2099526996.
The previous prime is 2102992147. The next prime is 2102992183. The reversal of 2102992169 is 9612992012.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2102992169 - 212 = 2102988073 is a prime.
It is a super-2 number, since 2×21029921692 = 8845152125750649122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2102992069) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731677 + ... + 1732890.
It is an arithmetic number, because the mean of its divisors is an integer number (526614336).
Almost surely, 22102992169 is an apocalyptic number.
It is an amenable number.
2102992169 is a deficient number, since it is larger than the sum of its proper divisors (3465175).
2102992169 is an equidigital number, since it uses as much as digits as its factorization.
2102992169 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3465174.
The product of its (nonzero) digits is 34992, while the sum is 41.
The square root of 2102992169 is about 45858.3925688636. The cubic root of 2102992169 is about 1281.1870841713.
The spelling of 2102992169 in words is "two billion, one hundred two million, nine hundred ninety-two thousand, one hundred sixty-nine".
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