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20023013200 = 2452192634607
BaseRepresentation
bin10010101001011101…
…101110111101010000
31220200102211110102111
4102221131232331100
5312001342410300
613110510355104
71306121542531
oct225135567520
956612743374
1020023013200
1185455181a3
123a697bba94
131b713a4708
14d7d396688
157c2cb49ba
hex4a976ef50

20023013200 has 60 divisors (see below), whose sum is σ = 50637165760. Its totient is φ = 7587665280.

The previous prime is 20023013189. The next prime is 20023013233. The reversal of 20023013200 is 231032002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1309704 + ... + 1324903.

Almost surely, 220023013200 is an apocalyptic number.

20023013200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20023013200 is an abundant number, since it is smaller than the sum of its proper divisors (30614152560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20023013200 is a wasteful number, since it uses less digits than its factorization.

20023013200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634644 (or 2634633 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20023013200 its reverse (231032002), we get a palindrome (20254045202).

The spelling of 20023013200 in words is "twenty billion, twenty-three million, thirteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 380 400 475 760 950 1520 1900 3800 7600 2634607 5269214 10538428 13173035 21076856 26346070 42153712 50057533 52692140 65865175 100115066 105384280 131730350 200230132 210768560 250287665 263460700 400460264 500575330 526921400 800920528 1001150660 1053842800 1251438325 2002301320 2502876650 4004602640 5005753300 10011506600 20023013200