Search a number
-
+
20572482 = 2371728813
BaseRepresentation
bin100111001111…
…0100101000010
31102201012010210
41032132211002
520231304412
62012534550
7336602040
oct116364502
942635123
1020572482
1110681457
126a81456
134353b88
142a37390
151c1583c
hex139e942

20572482 has 32 divisors (see below), whose sum is σ = 49790592. Its totient is φ = 5531904.

The previous prime is 20572457. The next prime is 20572507. The reversal of 20572482 is 28427502.

It is an interprime number because it is at equal distance from previous prime (20572457) and next prime (20572507).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13693 + ... + 15120.

It is an arithmetic number, because the mean of its divisors is an integer number (1555956).

Almost surely, 220572482 is an apocalyptic number.

20572482 is an abundant number, since it is smaller than the sum of its proper divisors (29218110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20572482 is a wasteful number, since it uses less digits than its factorization.

20572482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28842.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 20572482 is about 4535.6898042084. The cubic root of 20572482 is about 274.0073612315.

Adding to 20572482 its reverse (28427502), we get a palindrome (48999984).

The spelling of 20572482 in words is "twenty million, five hundred seventy-two thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 714 28813 57626 86439 172878 201691 403382 489821 605073 979642 1210146 1469463 2938926 3428747 6857494 10286241 20572482