Search a number
-
+
20500341 = 38298243
BaseRepresentation
bin100111000110…
…0111101110101
31102120112011220
41032030331311
520222002331
62011220553
7336151521
oct116147565
942515156
1020500341
1110632234
126a47759
13432a0a4
142a18d81
151bee296
hex138cf75

20500341 has 8 divisors (see below), whose sum is σ = 27370080. Its totient is φ = 13648752.

The previous prime is 20500339. The next prime is 20500343. The reversal of 20500341 is 14300502.

It is an interprime number because it is at equal distance from previous prime (20500339) and next prime (20500343).

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

It is not a de Polignac number, because 20500341 - 21 = 20500339 is a prime.

It is a super-2 number, since 2×205003412 = 840527962232562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20500341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20500343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635 + ... + 6608.

It is an arithmetic number, because the mean of its divisors is an integer number (3421260).

Almost surely, 220500341 is an apocalyptic number.

It is an amenable number.

20500341 is a deficient number, since it is larger than the sum of its proper divisors (6869739).

20500341 is an equidigital number, since it uses as much as digits as its factorization.

20500341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9075.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20500341 is about 4527.7302260625. The cubic root of 20500341 is about 273.6867012380.

Adding to 20500341 its reverse (14300502), we get a palindrome (34800843).

The spelling of 20500341 in words is "twenty million, five hundred thousand, three hundred forty-one".

Divisors: 1 3 829 2487 8243 24729 6833447 20500341