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20332732 = 227726169
BaseRepresentation
bin100110110010…
…0000010111100
31102021000021011
41031210002330
520201121412
62003445004
7334553050
oct115440274
942230234
1020332732
1110528312
126986764
13429ba04
1429b3c60
151bb97a7
hex13640bc

20332732 has 12 divisors (see below), whose sum is σ = 40665520. Its totient is φ = 8714016.

The previous prime is 20332727. The next prime is 20332733. The reversal of 20332732 is 23723302.

20332732 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363057 + ... + 363112.

Almost surely, 220332732 is an apocalyptic number.

It is an amenable number.

20332732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20332732 is a wasteful number, since it uses less digits than its factorization.

20332732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726180 (or 726178 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 20332732 is about 4509.1830745713. The cubic root of 20332732 is about 272.9387796727.

The spelling of 20332732 in words is "twenty million, three hundred thirty-two thousand, seven hundred thirty-two".

Divisors: 1 2 4 7 14 28 726169 1452338 2904676 5083183 10166366 20332732