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19012310102 = 223993962549
BaseRepresentation
bin10001101101001110…
…001101010001010110
31211002000000102102102
4101231032031101112
5302414122410402
612422323442102
71242066653342
oct215516152126
954060012372
1019012310102
118076a53a85
123827226332
131a3cb8a946
14cc5060622
157641bc102
hex46d38d456

19012310102 has 8 divisors (see below), whose sum is σ = 28530360000. Its totient is φ = 9502190104.

The previous prime is 19012310101. The next prime is 19012310113. The reversal of 19012310102 is 20101321091.

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

It is a super-2 number, since 2×190123101022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19012310101) 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, 1976477 + ... + 1986072.

It is an arithmetic number, because the mean of its divisors is an integer number (3566295000).

Almost surely, 219012310102 is an apocalyptic number.

19012310102 is a deficient number, since it is larger than the sum of its proper divisors (9518049898).

19012310102 is a wasteful number, since it uses less digits than its factorization.

19012310102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964950.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 19012310102 its reverse (20101321091), we get a palindrome (39113631193).

The spelling of 19012310102 in words is "nineteen billion, twelve million, three hundred ten thousand, one hundred two".

Divisors: 1 2 2399 4798 3962549 7925098 9506155051 19012310102