Search a number
-
+
12303103033 = 13946392541
BaseRepresentation
bin10110111010101001…
…00111010000111001
31011202102110101112201
423131110213100321
5200144043244113
65352454110201
7613611436024
oct133524472071
934672411481
1012303103033
115243865451
12247434b361
131210baab30
14849d9c1bb
154c0193cdd
hex2dd527439

12303103033 has 4 divisors (see below), whose sum is σ = 13249495588. Its totient is φ = 11356710480.

The previous prime is 12303103019. The next prime is 12303103039. The reversal of 12303103033 is 33030130321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33030130321 = 209471576843.

It can be written as a sum of positive squares in 2 ways, for example, as 1696780864 + 10606322169 = 41192^2 + 102987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12303103033 is a prime.

It is a super-2 number, since 2×123031030332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12303103033.

It is not an unprimeable number, because it can be changed into a prime (12303103039) 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, 473196258 + ... + 473196283.

It is an arithmetic number, because the mean of its divisors is an integer number (3312373897).

Almost surely, 212303103033 is an apocalyptic number.

12303103033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12303103033 is a deficient number, since it is larger than the sum of its proper divisors (946392555).

12303103033 is an equidigital number, since it uses as much as digits as its factorization.

12303103033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946392554.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 12303103033 its reverse (33030130321), we get a palindrome (45333233354).

The spelling of 12303103033 in words is "twelve billion, three hundred three million, one hundred three thousand, thirty-three".

Divisors: 1 13 946392541 12303103033