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20441260 = 2257146009
BaseRepresentation
bin100110111111…
…0100010101100
31102110112010201
41031332202230
520213110020
62010043244
7335514340
oct115764254
942415121
1020441260
11105a1904
126a19524
134309228
142a01620
151bdba0a
hex137e8ac

20441260 has 24 divisors (see below), whose sum is σ = 49059360. Its totient is φ = 7008384.

The previous prime is 20441257. The next prime is 20441261. The reversal of 20441260 is 6214402.

It is a super-2 number, since 2×204412602 = 835690220775200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20441261) 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, 72865 + ... + 73144.

It is an arithmetic number, because the mean of its divisors is an integer number (2044140).

Almost surely, 220441260 is an apocalyptic number.

20441260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20441260 is an abundant number, since it is smaller than the sum of its proper divisors (28618100).

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

20441260 is a wasteful number, since it uses less digits than its factorization.

20441260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146025 (or 146023 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20441260 is about 4521.2011678314. The cubic root of 20441260 is about 273.4235309435.

Adding to 20441260 its reverse (6214402), we get a palindrome (26655662).

The spelling of 20441260 in words is "twenty million, four hundred forty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 146009 292018 584036 730045 1022063 1460090 2044126 2920180 4088252 5110315 10220630 20441260