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1202233013 = 1770719589
BaseRepresentation
bin100011110101000…
…1001111010110101
310002210012202122122
41013222021322311
54430232424023
6315144005325
741535545342
oct10752117265
93083182578
101202233013
115676a1503
12296760845
131620c69a7
14b59517c9
157082c2c8
hex47a89eb5

1202233013 has 4 divisors (see below), whose sum is σ = 1272952620. Its totient is φ = 1131513408.

The previous prime is 1202233007. The next prime is 1202233031. The reversal of 1202233013 is 3103322021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103322021 = 4175690781.

It can be written as a sum of positive squares in 2 ways, for example, as 530749444 + 671483569 = 23038^2 + 25913^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202233013 - 226 = 1135124149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 70719589 = 1202233013 / (1 + 2 + 0 + 2 + 2 + 3 + 3 + 0 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202232982 and 1202233000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202233033) 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 3 ways as a sum of consecutive naturals, for example, 35359778 + ... + 35359811.

It is an arithmetic number, because the mean of its divisors is an integer number (318238155).

Almost surely, 21202233013 is an apocalyptic number.

It is an amenable number.

1202233013 is a deficient number, since it is larger than the sum of its proper divisors (70719607).

1202233013 is an equidigital number, since it uses as much as digits as its factorization.

1202233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70719606.

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

The square root of 1202233013 is about 34673.2319376201. The cubic root of 1202233013 is about 1063.3173080811.

Adding to 1202233013 its reverse (3103322021), we get a palindrome (4305555034).

The spelling of 1202233013 in words is "one billion, two hundred two million, two hundred thirty-three thousand, thirteen".

Divisors: 1 17 70719589 1202233013