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2541220 = 2251111551
BaseRepresentation
bin1001101100011010100100
311210002220021
421230122210
51122304340
6130244524
730412543
oct11543244
94702807
102541220
111486290
12a26744
136ac8a6
144a215a
15352e4a
hex26c6a4

2541220 has 24 divisors (see below), whose sum is σ = 5822208. Its totient is φ = 924000.

The previous prime is 2541173. The next prime is 2541229. The reversal of 2541220 is 221452.

2541220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2541194 and 2541203.

It is not an unprimeable number, because it can be changed into a prime (2541229) 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, 5556 + ... + 5995.

It is an arithmetic number, because the mean of its divisors is an integer number (242592).

22541220 is an apocalyptic number.

2541220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2541220 is an abundant number, since it is smaller than the sum of its proper divisors (3280988).

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

2541220 is a wasteful number, since it uses less digits than its factorization.

2541220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11571 (or 11569 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2541220 is about 1594.1204471432. The cubic root of 2541220 is about 136.4627403481.

Adding to 2541220 its reverse (221452), we get a palindrome (2762672).

The spelling of 2541220 in words is "two million, five hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 11551 23102 46204 57755 115510 127061 231020 254122 508244 635305 1270610 2541220