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20020033700 = 2252972063921
BaseRepresentation
bin10010101001010010…
…010111100010100100
31220200020020002022122
4102221102113202210
5312000112034300
613110322445112
71306054323122
oct225122274244
956606202278
1020020033700
1185438726a7
123a68803798
131b708a04b4
14d7cc1c912
157c28c6c85
hex4a94978a4

20020033700 has 36 divisors (see below), whose sum is σ = 43891365252. Its totient is φ = 7925452800.

The previous prime is 20020033651. The next prime is 20020033723. The reversal of 20020033700 is 733002002.

It can be written as a sum of positive squares in 6 ways, for example, as 202151524 + 19817882176 = 14218^2 + 140776^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022261 + ... + 1041660.

Almost surely, 220020033700 is an apocalyptic number.

20020033700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020033700 is an abundant number, since it is smaller than the sum of its proper divisors (23871331552).

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

20020033700 is a wasteful number, since it uses less digits than its factorization.

20020033700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064032 (or 2064025 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

Adding to 20020033700 its reverse (733002002), we get a palindrome (20753035702).

The spelling of 20020033700 in words is "twenty billion, twenty million, thirty-three thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 97 100 194 388 485 970 1940 2425 4850 9700 2063921 4127842 8255684 10319605 20639210 41278420 51598025 103196050 200200337 206392100 400400674 800801348 1001001685 2002003370 4004006740 5005008425 10010016850 20020033700