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2283140 = 225114157
BaseRepresentation
bin1000101101011010000100
311021222212202
420231122010
51041030030
6120534032
725256246
oct10553204
94258782
102283140
11131a3a2
12921318
1361c292
14436096
15301745
hex22d684

2283140 has 12 divisors (see below), whose sum is σ = 4794636. Its totient is φ = 913248.

The previous prime is 2283139. The next prime is 2283191. The reversal of 2283140 is 413822.

It can be written as a sum of positive squares in 2 ways, for example, as 1522756 + 760384 = 1234^2 + 872^2 .

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: 114157 = 2283140 / (2 + 2 + 8 + 3 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57059 + ... + 57098.

It is an arithmetic number, because the mean of its divisors is an integer number (399553).

22283140 is an apocalyptic number.

2283140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2283140 is an abundant number, since it is smaller than the sum of its proper divisors (2511496).

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

2283140 is a wasteful number, since it uses less digits than its factorization.

2283140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114166 (or 114164 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2283140 is about 1511.0062872139. The cubic root of 2283140 is about 131.6772802069.

Adding to 2283140 its reverse (413822), we get a palindrome (2696962).

The spelling of 2283140 in words is "two million, two hundred eighty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 114157 228314 456628 570785 1141570 2283140