Search a number
-
+
20054153 = 72864879
BaseRepresentation
bin100110010000…
…0000010001001
31101201212010102
41030200002021
520113213103
61553455145
7332312630
oct114400211
941655112
1020054153
1110357a89
1268714b5
134201c82
142940517
151b61e88
hex1320089

20054153 has 4 divisors (see below), whose sum is σ = 22919040. Its totient is φ = 17189268.

The previous prime is 20054149. The next prime is 20054191. The reversal of 20054153 is 35145002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20054153 - 22 = 20054149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20054113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1432433 + ... + 1432446.

It is an arithmetic number, because the mean of its divisors is an integer number (5729760).

Almost surely, 220054153 is an apocalyptic number.

It is an amenable number.

20054153 is a deficient number, since it is larger than the sum of its proper divisors (2864887).

20054153 is an equidigital number, since it uses as much as digits as its factorization.

20054153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864886.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20054153 is about 4478.1863516384. The cubic root of 20054153 is about 271.6865306380.

Adding to 20054153 its reverse (35145002), we get a palindrome (55199155).

The spelling of 20054153 in words is "twenty million, fifty-four thousand, one hundred fifty-three".

Divisors: 1 7 2864879 20054153