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20013031102 = 289627117929
BaseRepresentation
bin10010101000110111…
…101001111010111110
31220122202001022120011
4102220313221322332
5311441313443402
613105512413434
71305640646311
oct225067517276
956582038504
1020013031102
11853a91a529
123a663a727a
131b6c2bb04c
14d7bd18978
157c1e91ed7
hex4a8de9ebe

20013031102 has 16 divisors (see below), whose sum is σ = 30363379200. Its totient is φ = 9891953280.

The previous prime is 20013031063. The next prime is 20013031139. The reversal of 20013031102 is 20113031002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107274 + ... + 1125202.

It is an arithmetic number, because the mean of its divisors is an integer number (1897711200).

Almost surely, 220013031102 is an apocalyptic number.

20013031102 is a deficient number, since it is larger than the sum of its proper divisors (10350348098).

20013031102 is a wasteful number, since it uses less digits than its factorization.

20013031102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24291.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20013031102 its reverse (20113031002), we get a palindrome (40126062104).

The spelling of 20013031102 in words is "twenty billion, thirteen million, thirty-one thousand, one hundred two".

Divisors: 1 2 89 178 6271 12542 17929 35858 558119 1116238 1595681 3191362 112432759 224865518 10006515551 20013031102