Search a number
-
+
20030042103 = 329230230369
BaseRepresentation
bin10010101001111000…
…100010111111110111
31220200221001120021020
4102221320202333313
5312010142321403
613111321152223
71306235356131
oct225170427767
956627046236
1020030042103
118549489105
123a7002b673
131b72995b26
14d802a6051
157c3702453
hex4a9e22ff7

20030042103 has 8 divisors (see below), whose sum is σ = 27627644400. Its totient is φ = 12892900608.

The previous prime is 20030042089. The next prime is 20030042111. The reversal of 20030042103 is 30124003002.

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

It is not a de Polignac number, because 20030042103 - 28 = 20030041847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030042113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115115098 + ... + 115115271.

It is an arithmetic number, because the mean of its divisors is an integer number (3453455550).

Almost surely, 220030042103 is an apocalyptic number.

20030042103 is a deficient number, since it is larger than the sum of its proper divisors (7597602297).

20030042103 is a wasteful number, since it uses less digits than its factorization.

20030042103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230230401.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20030042103 its reverse (30124003002), we get a palindrome (50154045105).

The spelling of 20030042103 in words is "twenty billion, thirty million, forty-two thousand, one hundred three".

Divisors: 1 3 29 87 230230369 690691107 6676680701 20030042103