Search a number
-
+
1230002313 = 3410000771
BaseRepresentation
bin100100101010000…
…0101100010001001
310011201110120222020
41021110011202021
510004340033223
6322015115053
742323563401
oct11124054211
93151416866
101230002313
11581338a41
122a3b12a89
13167a9a527
14b94dd801
1572eb51e3
hex49505889

1230002313 has 4 divisors (see below), whose sum is σ = 1640003088. Its totient is φ = 820001540.

The previous prime is 1230002299. The next prime is 1230002321. The reversal of 1230002313 is 3132000321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230002313 - 213 = 1229994121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230002292 and 1230002301.

It is not an unprimeable number, because it can be changed into a prime (1230002363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205000383 + ... + 205000388.

It is an arithmetic number, because the mean of its divisors is an integer number (410000772).

Almost surely, 21230002313 is an apocalyptic number.

It is an amenable number.

1230002313 is a deficient number, since it is larger than the sum of its proper divisors (410000775).

1230002313 is an equidigital number, since it uses as much as digits as its factorization.

1230002313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410000774.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1230002313 is about 35071.3888091133. The cubic root of 1230002313 is about 1071.4419413011.

Adding to 1230002313 its reverse (3132000321), we get a palindrome (4362002634).

The spelling of 1230002313 in words is "one billion, two hundred thirty million, two thousand, three hundred thirteen".

Divisors: 1 3 410000771 1230002313