Search a number
-
+
20430412102 = 210903936917
BaseRepresentation
bin10011000001101111…
…110101100101000110
31221201211102110122201
4103001233311211012
5313320141141402
613215142345114
71322166431452
oct230157654506
957654373581
1020430412102
118734487001
123b6212b19a
131c07906959
14dbb525662
157e893a687
hex4c1bf5946

20430412102 has 8 divisors (see below), whose sum is σ = 30648461616. Its totient is φ = 10214258232.

The previous prime is 20430412087. The next prime is 20430412111. The reversal of 20430412102 is 20121403402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20430412102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446653 + ... + 490264.

It is an arithmetic number, because the mean of its divisors is an integer number (3831057702).

Almost surely, 220430412102 is an apocalyptic number.

20430412102 is a deficient number, since it is larger than the sum of its proper divisors (10218049514).

20430412102 is a wasteful number, since it uses less digits than its factorization.

20430412102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947822.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20430412102 its reverse (20121403402), we get a palindrome (40551815504).

The spelling of 20430412102 in words is "twenty billion, four hundred thirty million, four hundred twelve thousand, one hundred two".

Divisors: 1 2 10903 21806 936917 1873834 10215206051 20430412102