Search a number
-
+
20049376 = 252327241
BaseRepresentation
bin100110001111…
…0110111100000
31101201121120111
41030132313200
520113040001
61553421104
7332262664
oct114366740
941647514
1020049376
1110354436
12686a794
1341cca49
14293c8a4
151b60851
hex131ede0

20049376 has 24 divisors (see below), whose sum is σ = 41189904. Its totient is φ = 9588480.

The previous prime is 20049373. The next prime is 20049413. The reversal of 20049376 is 67394002.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20049373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12885 + ... + 14356.

It is an arithmetic number, because the mean of its divisors is an integer number (1716246).

Almost surely, 220049376 is an apocalyptic number.

It is an amenable number.

20049376 is an abundant number, since it is smaller than the sum of its proper divisors (21140528).

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

20049376 is a wasteful number, since it uses less digits than its factorization.

20049376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27274 (or 27266 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 20049376 is about 4477.6529566281. The cubic root of 20049376 is about 271.6649565593.

The spelling of 20049376 in words is "twenty million, forty-nine thousand, three hundred seventy-six".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 736 27241 54482 108964 217928 435856 626543 871712 1253086 2506172 5012344 10024688 20049376