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20010241 = 171177073
BaseRepresentation
bin100110001010…
…1010100000001
31101122121220001
41030111110001
520110311431
61552520001
7332040616
oct114252401
941577801
1020010241
1110327a99
126850001
1341b7ca4
14292c50d
151b53e61
hex1315501

20010241 has 4 divisors (see below), whose sum is σ = 21187332. Its totient is φ = 18833152.

The previous prime is 20010239. The next prime is 20010259. The reversal of 20010241 is 14201002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14201002 = 27100501.

It can be written as a sum of positive squares in 2 ways, for example, as 16982641 + 3027600 = 4121^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010241 - 21 = 20010239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588520 + ... + 588553.

It is an arithmetic number, because the mean of its divisors is an integer number (5296833).

Almost surely, 220010241 is an apocalyptic number.

It is an amenable number.

20010241 is a deficient number, since it is larger than the sum of its proper divisors (1177091).

20010241 is a wasteful number, since it uses less digits than its factorization.

20010241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177090.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20010241 is about 4473.2807870734. The cubic root of 20010241 is about 271.4880843386.

Adding to 20010241 its reverse (14201002), we get a palindrome (34211243).

The spelling of 20010241 in words is "twenty million, ten thousand, two hundred forty-one".

Divisors: 1 17 1177073 20010241