Search a number
-
+
20622441 = 37982021
BaseRepresentation
bin100111010101…
…0110001101001
31102210201200010
41032222301221
520234404231
62014002133
7340200510
oct116526151
942721603
1020622441
1110705a44
126aa6349
134370838
142a4b677
151c25546
hex13aac69

20622441 has 8 divisors (see below), whose sum is σ = 31424704. Its totient is φ = 11784240.

The previous prime is 20622439. The next prime is 20622443. The reversal of 20622441 is 14422602.

It is an interprime number because it is at equal distance from previous prime (20622439) and next prime (20622443).

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

It is not a de Polignac number, because 20622441 - 21 = 20622439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 982021 = 20622441 / (2 + 0 + 6 + 2 + 2 + 4 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20622443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 490990 + ... + 491031.

It is an arithmetic number, because the mean of its divisors is an integer number (3928088).

Almost surely, 220622441 is an apocalyptic number.

20622441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20622441 is a deficient number, since it is larger than the sum of its proper divisors (10802263).

20622441 is an equidigital number, since it uses as much as digits as its factorization.

20622441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982031.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20622441 is about 4541.1937857792. The cubic root of 20622441 is about 274.2289852374.

The spelling of 20622441 in words is "twenty million, six hundred twenty-two thousand, four hundred forty-one".

Divisors: 1 3 7 21 982021 2946063 6874147 20622441