Search a number
-
+
20822795 = 57284991
BaseRepresentation
bin100111101101…
…1101100001011
31110011220111122
41033123230023
520312312140
62022145455
7341663600
oct117335413
943156448
1020822795
1110832524
126b8228b
134410aa6
142aa06a7
151c64ab5
hex13dbb0b

20822795 has 12 divisors (see below), whose sum is σ = 29067264. Its totient is φ = 14278320.

The previous prime is 20822717. The next prime is 20822821. The reversal of 20822795 is 59722802.

It is not a de Polignac number, because 20822795 - 218 = 20560651 is a prime.

It is a super-2 number, since 2×208227952 = 867177583224050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42251 + ... + 42740.

It is an arithmetic number, because the mean of its divisors is an integer number (2422272).

Almost surely, 220822795 is an apocalyptic number.

20822795 is a deficient number, since it is larger than the sum of its proper divisors (8244469).

20822795 is an equidigital number, since it uses as much as digits as its factorization.

20822795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85010 (or 85003 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20822795 is about 4563.2000832749. The cubic root of 20822795 is about 275.1142005028.

The spelling of 20822795 in words is "twenty million, eight hundred twenty-two thousand, seven hundred ninety-five".

Divisors: 1 5 7 35 49 245 84991 424955 594937 2974685 4164559 20822795