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2182797 = 32242533
BaseRepresentation
bin1000010100111010001101
311002220020100
420110322031
51024322142
6114441313
724360561
oct10247215
94086210
102182797
111260a71
12893239
135b56c6
1440b6a1
152d1b4c
hex214e8d

2182797 has 6 divisors (see below), whose sum is σ = 3152942. Its totient is φ = 1455192.

The previous prime is 2182781. The next prime is 2182811. The reversal of 2182797 is 7972812.

It can be written as a sum of positive squares in only one way, i.e., 1565001 + 617796 = 1251^2 + 786^2 .

It is not a de Polignac number, because 2182797 - 24 = 2182781 is a prime.

It is a Duffinian number.

2182797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121258 + ... + 121275.

22182797 is an apocalyptic number.

It is an amenable number.

2182797 is a deficient number, since it is larger than the sum of its proper divisors (970145).

2182797 is a wasteful number, since it uses less digits than its factorization.

2182797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242539 (or 242536 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2182797 is about 1477.4291861203. The cubic root of 2182797 is about 129.7192560836.

The spelling of 2182797 in words is "two million, one hundred eighty-two thousand, seven hundred ninety-seven".

Divisors: 1 3 9 242533 727599 2182797