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532020990 = 23517734033
BaseRepresentation
bin11111101101011…
…111111011111110
31101002002110121010
4133231133323332
52042144132430
6124443020050
716120050414
oct3755377376
91332073533
10532020990
11253348276
1212a20a626
13862b6c27
145092d2b4
1531a90cb0
hex1fb5fefe

532020990 has 16 divisors (see below), whose sum is σ = 1276850448. Its totient is φ = 141872256.

The previous prime is 532020959. The next prime is 532021003. The reversal of 532020990 is 99020235.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17734033 = 532020990 / (5 + 3 + 2 + 0 + 2 + 0 + 9 + 9 + 0).

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, 8866987 + ... + 8867046.

It is an arithmetic number, because the mean of its divisors is an integer number (79803153).

Almost surely, 2532020990 is an apocalyptic number.

532020990 is an abundant number, since it is smaller than the sum of its proper divisors (744829458).

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

532020990 is a wasteful number, since it uses less digits than its factorization.

532020990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734043.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 532020990 is about 23065.5802008100. The cubic root of 532020990 is about 810.2945583176.

The spelling of 532020990 in words is "five hundred thirty-two million, twenty thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 17734033 35468066 53202099 88670165 106404198 177340330 266010495 532020990