Base | Representation |
---|---|
bin | 10001010010010… |
… | …001000010011111 |
3 | 202012200120122211 |
4 | 101102101002133 |
5 | 1043220013210 |
6 | 44435421251 |
7 | 10120653061 |
oct | 2122210237 |
9 | 665616584 |
10 | 290001055 |
11 | 1397750a3 |
12 | 81154827 |
13 | 48109876 |
14 | 2a72d731 |
15 | 1a6d638a |
hex | 1149109f |
290001055 has 4 divisors (see below), whose sum is σ = 348001272. Its totient is φ = 232000840.
The previous prime is 290001031. The next prime is 290001059. The reversal of 290001055 is 550100092.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 290001055 - 213 = 289992863 is a prime.
It is a super-2 number, since 2×2900010552 = 168201223802226050, which contains 22 as substring.
It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (290001059) 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, 29000101 + ... + 29000110.
It is an arithmetic number, because the mean of its divisors is an integer number (87000318).
Almost surely, 2290001055 is an apocalyptic number.
290001055 is a deficient number, since it is larger than the sum of its proper divisors (58000217).
290001055 is an equidigital number, since it uses as much as digits as its factorization.
290001055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58000216.
The product of its (nonzero) digits is 450, while the sum is 22.
The square root of 290001055 is about 17029.4173417648. The cubic root of 290001055 is about 661.9113974633.
The spelling of 290001055 in words is "two hundred ninety million, one thousand, fifty-five".
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