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102542342323 = 1511322921017
BaseRepresentation
bin101111101111111111…
…1111111100010110011
3100210200100111201021111
41133133333333202303
53140001314423243
6115035102134151
710260044346151
oct1373777774263
9323610451244
10102542342323
113a54052a563
1217a59281357
139892445905
144d6a9743d1
152a0252b39d
hex17dffff8b3

102542342323 has 8 divisors (see below), whose sum is σ = 102646867680. Its totient is φ = 102437868480.

The previous prime is 102542342321. The next prime is 102542342339. The reversal of 102542342323 is 323243245201.

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 102542342323 - 21 = 102542342321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102542342321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4868511 + ... + 4889527.

It is an arithmetic number, because the mean of its divisors is an integer number (12830858460).

Almost surely, 2102542342323 is an apocalyptic number.

102542342323 is a deficient number, since it is larger than the sum of its proper divisors (104525357).

102542342323 is a wasteful number, since it uses less digits than its factorization.

102542342323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25757.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 102542342323 its reverse (323243245201), we get a palindrome (425785587524).

The spelling of 102542342323 in words is "one hundred two billion, five hundred forty-two million, three hundred forty-two thousand, three hundred twenty-three".

Divisors: 1 1511 3229 21017 4879019 31756687 67863893 102542342323