Base | Representation |
---|---|
bin | 100100101000010… |
… | …1001110100000101 |
3 | 10011122202212102221 |
4 | 1021100221310011 |
5 | 10004122233331 |
6 | 321543532341 |
7 | 42313124515 |
oct | 11120516405 |
9 | 3148685387 |
10 | 1229102341 |
11 | 580883865 |
12 | 2a375a0b1 |
13 | 1678439bc |
14 | b9347845 |
15 | 72d88711 |
hex | 49429d05 |
1229102341 has 4 divisors (see below), whose sum is σ = 1237351500. Its totient is φ = 1220853184.
The previous prime is 1229102333. The next prime is 1229102351. The reversal of 1229102341 is 1432019221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1432019221 = 151 ⋅9483571.
It can be written as a sum of positive squares in 2 ways, for example, as 814817025 + 414285316 = 28545^2 + 20354^2 .
It is a cyclic number.
It is not a de Polignac number, because 1229102341 - 23 = 1229102333 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 (1229102351) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4124356 + ... + 4124653.
It is an arithmetic number, because the mean of its divisors is an integer number (309337875).
Almost surely, 21229102341 is an apocalyptic number.
It is an amenable number.
1229102341 is a deficient number, since it is larger than the sum of its proper divisors (8249159).
1229102341 is an equidigital number, since it uses as much as digits as its factorization.
1229102341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8249158.
The product of its (nonzero) digits is 864, while the sum is 25.
The square root of 1229102341 is about 35058.5558886843. Note that the first 3 decimals coincide. The cubic root of 1229102341 is about 1071.1805588599.
The spelling of 1229102341 in words is "one billion, two hundred twenty-nine million, one hundred two thousand, three hundred forty-one".
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