Base | Representation |
---|---|
bin | 100011110001010… |
… | …0000111110110011 |
3 | 10002122110000110221 |
4 | 1013202200332303 |
5 | 4424224332243 |
6 | 315033033511 |
7 | 41512534525 |
oct | 10742407663 |
9 | 3078400427 |
10 | 1200230323 |
11 | 566553896 |
12 | 295b55897 |
13 | 161875276 |
14 | b558da15 |
15 | 70583bed |
hex | 478a0fb3 |
1200230323 has 4 divisors (see below), whose sum is σ = 1263400360. Its totient is φ = 1137060288.
The previous prime is 1200230281. The next prime is 1200230347. The reversal of 1200230323 is 3230320021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3230320021 = 1873 ⋅1724677.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1200230323 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1200230297 and 1200230306.
It is not an unprimeable number, because it can be changed into a prime (1200230123) 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, 31584990 + ... + 31585027.
It is an arithmetic number, because the mean of its divisors is an integer number (315850090).
Almost surely, 21200230323 is an apocalyptic number.
1200230323 is a deficient number, since it is larger than the sum of its proper divisors (63170037).
1200230323 is an equidigital number, since it uses as much as digits as its factorization.
1200230323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63170036.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 1200230323 is about 34644.3404180250. The cubic root of 1200230323 is about 1062.7265522527.
Adding to 1200230323 its reverse (3230320021), we get a palindrome (4430550344).
The spelling of 1200230323 in words is "one billion, two hundred million, two hundred thirty thousand, three hundred twenty-three".
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