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3213022013 = 5521758189
BaseRepresentation
bin1011111110000010…
…1101001100111101
322021220212102121022
42333200231030331
523040013201023
61250454113525
7142423144055
oct27740551475
98256772538
103213022013
1113a9737aa3
1275804b8a5
133c287aa76
14226a18565
1513c1217c8
hexbf82d33d

3213022013 has 4 divisors (see below), whose sum is σ = 3213135420. Its totient is φ = 3212908608.

The previous prime is 3213022009. The next prime is 3213022061. The reversal of 3213022013 is 3102203123.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3102203123 = 16319031921.

It can be written as a sum of positive squares in 2 ways, for example, as 1128825604 + 2084196409 = 33598^2 + 45653^2 .

It is a cyclic number.

It is not a de Polignac number, because 3213022013 - 22 = 3213022009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213021982 and 3213022000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213022313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26123 + ... + 84311.

It is an arithmetic number, because the mean of its divisors is an integer number (803283855).

Almost surely, 23213022013 is an apocalyptic number.

It is an amenable number.

3213022013 is a deficient number, since it is larger than the sum of its proper divisors (113407).

3213022013 is an equidigital number, since it uses as much as digits as its factorization.

3213022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113406.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3213022013 is about 56683.5250579919. The cubic root of 3213022013 is about 1475.6087902337.

Adding to 3213022013 its reverse (3102203123), we get a palindrome (6315225136).

The spelling of 3213022013 in words is "three billion, two hundred thirteen million, twenty-two thousand, thirteen".

Divisors: 1 55217 58189 3213022013