Search a number
-
+
2291060 = 225114553
BaseRepresentation
bin1000101111010101110100
311022101202002
420233111310
51041303220
6121034432
725321322
oct10572564
94271662
102291060
111325342
12925a18
13622a75
14438d12
15303c75
hex22f574

2291060 has 12 divisors (see below), whose sum is σ = 4811268. Its totient is φ = 916416.

The previous prime is 2291041. The next prime is 2291063. The reversal of 2291060 is 601922.

It can be written as a sum of positive squares in 2 ways, for example, as 425104 + 1865956 = 652^2 + 1366^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 114553 = 2291060 / (2 + 2 + 9 + 1 + 0 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57257 + ... + 57296.

It is an arithmetic number, because the mean of its divisors is an integer number (400939).

22291060 is an apocalyptic number.

2291060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2291060 is an abundant number, since it is smaller than the sum of its proper divisors (2520208).

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

2291060 is a wasteful number, since it uses less digits than its factorization.

2291060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114562 (or 114560 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2291060 is about 1513.6247883805. The cubic root of 2291060 is about 131.8293632284.

Adding to 2291060 its reverse (601922), we get a palindrome (2892982).

The spelling of 2291060 in words is "two million, two hundred ninety-one thousand, sixty".

Divisors: 1 2 4 5 10 20 114553 229106 458212 572765 1145530 2291060