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20053524505 = 572943459469
BaseRepresentation
bin10010101011010010…
…001000000000011001
31220202120020121001211
4102223102020000121
5312032200241010
613113520343121
71306642101010
oct225322100031
956676217054
1020053524505
118560767853
123a77a74aa1
131b777c8341
14d83459a77
157c57e008a
hex4ab488019

20053524505 has 32 divisors (see below), whose sum is σ = 29112019200. Its totient is φ = 12968024832.

The previous prime is 20053524503. The next prime is 20053524523. The reversal of 20053524505 is 50542535002.

It is a happy number.

It is not a de Polignac number, because 20053524505 - 21 = 20053524503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20053524503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186090 + ... + 273379.

It is an arithmetic number, because the mean of its divisors is an integer number (909750600).

Almost surely, 220053524505 is an apocalyptic number.

It is an amenable number.

20053524505 is a deficient number, since it is larger than the sum of its proper divisors (9058494695).

20053524505 is a wasteful number, since it uses less digits than its factorization.

20053524505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459553.

The product of its (nonzero) digits is 30000, while the sum is 31.

The spelling of 20053524505 in words is "twenty billion, fifty-three million, five hundred twenty-four thousand, five hundred five".

Divisors: 1 5 7 29 35 43 145 203 215 301 1015 1247 1505 6235 8729 43645 459469 2297345 3216283 13324601 16081415 19757167 66623005 93272207 98785835 138300169 466361035 572957843 691500845 2864789215 4010704901 20053524505