Search a number
-
+
30230121313 = 74318588759
BaseRepresentation
bin11100001001110110…
…110000101101100001
32220000210022021110201
4130021312300231201
5443402402340223
621515412225201
72120062535320
oct341166605541
986023267421
1030230121313
111190312a637
125a3800b201
132b09c67662
14166ac2c0b7
15bbde32ead
hex709db0b61

30230121313 has 4 divisors (see below), whose sum is σ = 34548710080. Its totient is φ = 25911532548.

The previous prime is 30230121289. The next prime is 30230121331. The reversal of 30230121313 is 31312103203.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31312103203 = 295311060313.

It is a cyclic number.

It is not a de Polignac number, because 30230121313 - 25 = 30230121281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30230121373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2159294373 + ... + 2159294386.

It is an arithmetic number, because the mean of its divisors is an integer number (8637177520).

Almost surely, 230230121313 is an apocalyptic number.

It is an amenable number.

30230121313 is a deficient number, since it is larger than the sum of its proper divisors (4318588767).

30230121313 is an equidigital number, since it uses as much as digits as its factorization.

30230121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318588766.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30230121313 its reverse (31312103203), we get a palindrome (61542224516).

The spelling of 30230121313 in words is "thirty billion, two hundred thirty million, one hundred twenty-one thousand, three hundred thirteen".

Divisors: 1 7 4318588759 30230121313