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18483703033 = 171087276649
BaseRepresentation
bin10001001101101101…
…101110110011111001
31202201011100101211211
4101031231232303321
5300323311444113
612254041523121
71223020612015
oct211555566371
952634311754
1018483703033
117925628734
1236ba1a34a1
1319874ca8b3
14c74b7d545
15732aa2b3d
hex44db6ecf9

18483703033 has 4 divisors (see below), whose sum is σ = 19570979700. Its totient is φ = 17396426368.

The previous prime is 18483702961. The next prime is 18483703039. The reversal of 18483703033 is 33030738481.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33030738481 = 132540826037.

It can be written as a sum of positive squares in 2 ways, for example, as 8370786064 + 10112916969 = 91492^2 + 100563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18483703033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18483703039) 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, 543638308 + ... + 543638341.

It is an arithmetic number, because the mean of its divisors is an integer number (4892744925).

Almost surely, 218483703033 is an apocalyptic number.

It is an amenable number.

18483703033 is a deficient number, since it is larger than the sum of its proper divisors (1087276667).

18483703033 is a wasteful number, since it uses less digits than its factorization.

18483703033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087276666.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 18483703033 in words is "eighteen billion, four hundred eighty-three million, seven hundred three thousand, thirty-three".

Divisors: 1 17 1087276649 18483703033