Base | Representation |
---|---|
bin | 100111010101110… |
… | …0001000000100101 |
3 | 10101222212111002002 |
4 | 1032223201000211 |
5 | 10200411431440 |
6 | 334552455045 |
7 | 44466033452 |
oct | 11653410045 |
9 | 3358774062 |
10 | 1320030245 |
11 | 618139296 |
12 | 30a0aa485 |
13 | 18062c0b1 |
14 | c7456829 |
15 | 7ad4a115 |
hex | 4eae1025 |
1320030245 has 8 divisors (see below), whose sum is σ = 1584299040. Its totient is φ = 1055849040.
The previous prime is 1320030233. The next prime is 1320030247. The reversal of 1320030245 is 5420300231.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1320030245 - 28 = 1320029989 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1320030247) 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, 17810 + ... + 54380.
It is an arithmetic number, because the mean of its divisors is an integer number (198037380).
Almost surely, 21320030245 is an apocalyptic number.
It is an amenable number.
1320030245 is a deficient number, since it is larger than the sum of its proper divisors (264268795).
1320030245 is an equidigital number, since it uses as much as digits as its factorization.
1320030245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43795.
The product of its (nonzero) digits is 720, while the sum is 20.
The square root of 1320030245 is about 36332.2204798991. The cubic root of 1320030245 is about 1096.9696886030.
Adding to 1320030245 its reverse (5420300231), we get a palindrome (6740330476).
The spelling of 1320030245 in words is "one billion, three hundred twenty million, thirty thousand, two hundred forty-five".
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