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20030102103 = 3118931121929
BaseRepresentation
bin10010101001111000…
…110001101001010111
31220200221011121120110
4102221320301221113
5312010201231403
613111322334103
71306236026064
oct225170615127
956627147513
1020030102103
11854951a1a0
123a7005a333
131b729b722b
14d802bdc6b
157c3715103
hex4a9e31a57

20030102103 has 32 divisors (see below), whose sum is σ = 29558131200. Its totient is φ = 11963916800.

The previous prime is 20030102041. The next prime is 20030102111. The reversal of 20030102103 is 30120103002.

It is a happy number.

It is not a de Polignac number, because 20030102103 - 228 = 19761666647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030102503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902443 + ... + 924371.

It is an arithmetic number, because the mean of its divisors is an integer number (923691600).

Almost surely, 220030102103 is an apocalyptic number.

20030102103 is a deficient number, since it is larger than the sum of its proper divisors (9528029097).

20030102103 is a wasteful number, since it uses less digits than its factorization.

20030102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22343.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20030102103 its reverse (30120103002), we get a palindrome (50150205105).

The spelling of 20030102103 in words is "twenty billion, thirty million, one hundred two thousand, one hundred three".

Divisors: 1 3 11 33 89 267 311 933 979 2937 3421 10263 21929 27679 65787 83037 241219 304469 723657 913407 1951681 5855043 6819919 20459757 21468491 64405473 75019109 225057327 606972791 1820918373 6676700701 20030102103