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2021233013 = 3478596781
BaseRepresentation
bin111100001111001…
…1001000101110101
312012212022021102222
41320132121011311
513114413424023
6532322012125
7101042124422
oct17036310565
95185267388
102021233013
11947a2a308
12484aa7045
1326299ca87
14152624d49
15bc6a8cc8
hex78799175

2021233013 has 8 divisors (see below), whose sum is σ = 2029716960. Its totient is φ = 2012765040.

The previous prime is 2021233009. The next prime is 2021233021. The reversal of 2021233013 is 3103321202.

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 2021233013 - 22 = 2021233009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2021232982 and 2021233000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021233043) 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, 294683 + ... + 301463.

It is an arithmetic number, because the mean of its divisors is an integer number (253714620).

Almost surely, 22021233013 is an apocalyptic number.

It is an amenable number.

2021233013 is a deficient number, since it is larger than the sum of its proper divisors (8483947).

2021233013 is an equidigital number, since it uses as much as digits as its factorization.

2021233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987.

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

The square root of 2021233013 is about 44958.1251054801. The cubic root of 2021233013 is about 1264.3640172013.

Adding to 2021233013 its reverse (3103321202), we get a palindrome (5124554215).

The spelling of 2021233013 in words is "two billion, twenty-one million, two hundred thirty-three thousand, thirteen".

Divisors: 1 347 859 6781 298073 2353007 5824879 2021233013