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3231330013 = 15401209813
BaseRepresentation
bin1100000010011010…
…0010111011011101
322100012022120110101
43000212202323131
523104210030023
61252350341101
7143034565132
oct30046427335
98305276411
103231330013
11140900207a
127621ba791
133c65bacc2
14229222589
1513da3b1ad
hexc09a2edd

3231330013 has 4 divisors (see below), whose sum is σ = 3231555228. Its totient is φ = 3231104800.

The previous prime is 3231329993. The next prime is 3231330083. The reversal of 3231330013 is 3100331323.

3231330013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3100331323 = 10392983957.

It can be written as a sum of positive squares in 2 ways, for example, as 3221357049 + 9972964 = 56757^2 + 3158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3231330013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231330083) 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, 89506 + ... + 120307.

It is an arithmetic number, because the mean of its divisors is an integer number (807888807).

Almost surely, 23231330013 is an apocalyptic number.

It is an amenable number.

3231330013 is a deficient number, since it is larger than the sum of its proper divisors (225215).

3231330013 is a wasteful number, since it uses less digits than its factorization.

3231330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225214.

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

The square root of 3231330013 is about 56844.7887936968. The cubic root of 3231330013 is about 1478.4061873613.

Adding to 3231330013 its reverse (3100331323), we get a palindrome (6331661336).

It can be divided in two parts, 32313 and 30013, that added together give a palindrome (62326).

The spelling of 3231330013 in words is "three billion, two hundred thirty-one million, three hundred thirty thousand, thirteen".

Divisors: 1 15401 209813 3231330013