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3123320313 = 31940353657
BaseRepresentation
bin1011101000101010…
…0001010111111001
322001200002010000010
42322022201113321
522344032222223
61233531332133
7140253533061
oct27212412771
98050063003
103123320313
11136303a863
12731bb1049
133aa101839
14218b483a1
15134303393
hexba2a15f9

3123320313 has 8 divisors (see below), whose sum is σ = 4164719328. Its totient is φ = 2082067424.

The previous prime is 3123320311. The next prime is 3123320327. The reversal of 3123320313 is 3130233213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3123320313 - 21 = 3123320311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3123320313.

It is not an unprimeable number, because it can be changed into a prime (3123320311) 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 7 ways as a sum of consecutive naturals, for example, 31381 + ... + 85037.

It is an arithmetic number, because the mean of its divisors is an integer number (520589916).

Almost surely, 23123320313 is an apocalyptic number.

It is an amenable number.

3123320313 is a deficient number, since it is larger than the sum of its proper divisors (1041399015).

3123320313 is a wasteful number, since it uses less digits than its factorization.

3123320313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73063.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 3123320313 is about 55886.6738409077. The cubic root of 3123320313 is about 1461.7468789832.

Adding to 3123320313 its reverse (3130233213), we get a palindrome (6253553526).

The spelling of 3123320313 in words is "three billion, one hundred twenty-three million, three hundred twenty thousand, three hundred thirteen".

Divisors: 1 3 19403 53657 58209 160971 1041106771 3123320313