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20331013102 = 210165506551
BaseRepresentation
bin10010111011110100…
…101010001111101110
31221110220101110212021
4102323310222033232
5313114214404402
613201232100354
71316551521451
oct227364521756
957426343767
1020331013102
118693366074
123b349946ba
131bc014388a
14dac24d498
157ded53d37
hex4bbd2a3ee

20331013102 has 4 divisors (see below), whose sum is σ = 30496519656. Its totient is φ = 10165506550.

The previous prime is 20331013097. The next prime is 20331013127. The reversal of 20331013102 is 20131013302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20131013302 = 210065506651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082753274 + ... + 5082753277.

It is an arithmetic number, because the mean of its divisors is an integer number (7624129914).

Almost surely, 220331013102 is an apocalyptic number.

20331013102 is a deficient number, since it is larger than the sum of its proper divisors (10165506554).

20331013102 is a wasteful number, since it uses less digits than its factorization.

20331013102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165506553.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20331013102 its reverse (20131013302), we get a palindrome (40462026404).

The spelling of 20331013102 in words is "twenty billion, three hundred thirty-one million, thirteen thousand, one hundred two".

Divisors: 1 2 10165506551 20331013102