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20031333230 = 259726217879
BaseRepresentation
bin10010101001111101…
…011110001101101110
31220201000111011100202
4102221331132031232
5312011010130410
613111404553502
71306252344266
oct225175361556
956630434322
1020031333230
11854a190157
123a70552892
131b730286cc
14d805207a6
157c38a9ca5
hex4a9f5e36e

20031333230 has 32 divisors (see below), whose sum is σ = 36446639040. Its totient is φ = 7925898240.

The previous prime is 20031333227. The next prime is 20031333247. The reversal of 20031333230 is 3233313002.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2538431 + ... + 2546309.

It is an arithmetic number, because the mean of its divisors is an integer number (1138957470).

Almost surely, 220031333230 is an apocalyptic number.

20031333230 is a deficient number, since it is larger than the sum of its proper divisors (16415305810).

20031333230 is a wasteful number, since it uses less digits than its factorization.

20031333230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10604.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20031333230 its reverse (3233313002), we get a palindrome (23264646232).

The spelling of 20031333230 in words is "twenty billion, thirty-one million, three hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 97 194 485 970 2621 5242 7879 13105 15758 26210 39395 78790 254237 508474 764263 1271185 1528526 2542370 3821315 7642630 20650859 41301718 103254295 206508590 2003133323 4006266646 10015666615 20031333230