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20574034 = 213791309
BaseRepresentation
bin100111001111…
…0111101010010
31102201021021021
41032132331102
520231332114
62012550054
7336606415
oct116367522
942637237
1020574034
1110682638
126a8232a
1343547b0
142a37b7c
151c16024
hex139ef52

20574034 has 8 divisors (see below), whose sum is σ = 33235020. Its totient is φ = 9495696.

The previous prime is 20574031. The next prime is 20574053. The reversal of 20574034 is 43047502.

It can be written as a sum of positive squares in 2 ways, for example, as 20277009 + 297025 = 4503^2 + 545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20574031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395629 + ... + 395680.

Almost surely, 220574034 is an apocalyptic number.

20574034 is a deficient number, since it is larger than the sum of its proper divisors (12660986).

20574034 is a wasteful number, since it uses less digits than its factorization.

20574034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791324.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20574034 is about 4535.8608885194. The cubic root of 20574034 is about 274.0142514831.

The spelling of 20574034 in words is "twenty million, five hundred seventy-four thousand, thirty-four".

Divisors: 1 2 13 26 791309 1582618 10287017 20574034