Search a number
-
+
20425054 = 213785579
BaseRepresentation
bin100110111101…
…0100101011110
31102102200220111
41031322211132
520212100204
62005440234
7335416156
oct115724536
942380814
1020425054
1110590711
126a1007a
134301a40
1429d9766
151bd6d04
hex137a95e

20425054 has 8 divisors (see below), whose sum is σ = 32994360. Its totient is φ = 9426936.

The previous prime is 20425049. The next prime is 20425091. The reversal of 20425054 is 45052402.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392764 + ... + 392815.

It is an arithmetic number, because the mean of its divisors is an integer number (4124295).

Almost surely, 220425054 is an apocalyptic number.

20425054 is a deficient number, since it is larger than the sum of its proper divisors (12569306).

20425054 is a wasteful number, since it uses less digits than its factorization.

20425054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785594.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20425054 is about 4519.4085896276. The cubic root of 20425054 is about 273.3512543607.

Adding to 20425054 its reverse (45052402), we get a palindrome (65477456).

It can be divided in two parts, 204250 and 54, that added together give a square (204304 = 4522).

The spelling of 20425054 in words is "twenty million, four hundred twenty-five thousand, fifty-four".

Divisors: 1 2 13 26 785579 1571158 10212527 20425054