Search a number
-
+
20107582 = 211913981
BaseRepresentation
bin100110010110…
…1000100111110
31101211120102021
41030231010332
520121420312
61554550354
7332624455
oct114550476
941746367
1020107582
1110394140
1268983ba
1342203a1
142955b9c
151b72c07
hex132d13e

20107582 has 8 divisors (see below), whose sum is σ = 32903352. Its totient is φ = 9139800.

The previous prime is 20107573. The next prime is 20107597. The reversal of 20107582 is 28570102.

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

It is a congruent number.

It is an unprimeable number.

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, 456969 + ... + 457012.

It is an arithmetic number, because the mean of its divisors is an integer number (4112919).

Almost surely, 220107582 is an apocalyptic number.

20107582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20107582 is a deficient number, since it is larger than the sum of its proper divisors (12795770).

20107582 is a wasteful number, since it uses less digits than its factorization.

20107582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913994.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 20107582 is about 4484.1478566167. The cubic root of 20107582 is about 271.9275957081.

Adding to 20107582 its reverse (28570102), we get a palindrome (48677684).

The spelling of 20107582 in words is "twenty million, one hundred seven thousand, five hundred eighty-two".

Divisors: 1 2 11 22 913981 1827962 10053791 20107582