Base | Representation |
---|---|
bin | 100100010111001… |
… | …0100100010011001 |
3 | 10011000211121200222 |
4 | 1020232110202121 |
5 | 4444321233142 |
6 | 321023005425 |
7 | 42143461361 |
oct | 11056244231 |
9 | 3130747628 |
10 | 1220102297 |
11 | 576796a07 |
12 | 2a0739875 |
13 | 165a1232b |
14 | b80839a1 |
15 | 721abbd2 |
hex | 48b94899 |
1220102297 has 8 divisors (see below), whose sum is σ = 1282868040. Its totient is φ = 1158716160.
The previous prime is 1220102293. The next prime is 1220102333. The reversal of 1220102297 is 7922010221.
It can be written as a sum of positive squares in 4 ways, for example, as 31990336 + 1188111961 = 5656^2 + 34469^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1220102297 - 22 = 1220102293 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1220102293) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343088 + ... + 346625.
It is an arithmetic number, because the mean of its divisors is an integer number (160358505).
Almost surely, 21220102297 is an apocalyptic number.
It is an amenable number.
1220102297 is a deficient number, since it is larger than the sum of its proper divisors (62765743).
1220102297 is an equidigital number, since it uses as much as digits as its factorization.
1220102297 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 689803.
The product of its (nonzero) digits is 1008, while the sum is 26.
The square root of 1220102297 is about 34929.9627397454. The cubic root of 1220102297 is about 1068.5595947201.
The spelling of 1220102297 in words is "one billion, two hundred twenty million, one hundred two thousand, two hundred ninety-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •