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20020012102 = 231322903421
BaseRepresentation
bin10010101001010010…
…010010010001000110
31220200020011222200201
4102221102102101012
5312000110341402
613110322201114
71306054203136
oct225122222106
956606158621
1020020012102
118543858452
123a687b319a
131b7089370c
14d7cc14ac6
157c28c0687
hex4a9492446

20020012102 has 8 divisors (see below), whose sum is σ = 30998728512. Its totient is φ = 9687102600.

The previous prime is 20020012063. The next prime is 20020012109. The reversal of 20020012102 is 20121002002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020012109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161451649 + ... + 161451772.

It is an arithmetic number, because the mean of its divisors is an integer number (3874841064).

Almost surely, 220020012102 is an apocalyptic number.

20020012102 is a deficient number, since it is larger than the sum of its proper divisors (10978716410).

20020012102 is a wasteful number, since it uses less digits than its factorization.

20020012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322903454.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20020012102 its reverse (20121002002), we get a palindrome (40141014104).

The spelling of 20020012102 in words is "twenty billion, twenty million, twelve thousand, one hundred two".

Divisors: 1 2 31 62 322903421 645806842 10010006051 20020012102