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20132494 = 210066247
BaseRepresentation
bin100110011001…
…1001010001110
31101212211120221
41030303022032
520123214434
61555301554
7333060214
oct114631216
941784527
1020132494
1110400928
1268aa8ba
13422b825
142960cb4
151b7a2b4
hex133328e

20132494 has 4 divisors (see below), whose sum is σ = 30198744. Its totient is φ = 10066246.

The previous prime is 20132491. The next prime is 20132503. The reversal of 20132494 is 49423102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033122 + ... + 5033125.

It is an arithmetic number, because the mean of its divisors is an integer number (7549686).

Almost surely, 220132494 is an apocalyptic number.

20132494 is a deficient number, since it is larger than the sum of its proper divisors (10066250).

20132494 is a wasteful number, since it uses less digits than its factorization.

20132494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066249.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20132494 is about 4486.9247820751. The cubic root of 20132494 is about 272.0398496258.

Adding to 20132494 its reverse (49423102), we get a palindrome (69555596).

The spelling of 20132494 in words is "twenty million, one hundred thirty-two thousand, four hundred ninety-four".

Divisors: 1 2 10066247 20132494