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3180242 = 2132972
BaseRepresentation
bin1100001000011011010010
312222120110202
430020123102
51303231432
6152055202
736013562
oct14103322
95876422
103180242
1118823aa
121094502
13874700
145cada2
1542c462
hex3086d2

3180242 has 18 divisors (see below), whose sum is σ = 5219343. Its totient is φ = 1452672.

The previous prime is 3180223. The next prime is 3180251. The reversal of 3180242 is 2420813.

It can be written as a sum of positive squares in 5 ways, for example, as 361201 + 2819041 = 601^2 + 1679^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1261.

It is a super-2 number, since 2×31802422 = 20227878357128, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32738 + ... + 32834.

Almost surely, 23180242 is an apocalyptic number.

3180242 is a deficient number, since it is larger than the sum of its proper divisors (2039101).

3180242 is an equidigital number, since it uses as much as digits as its factorization.

3180242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 112 counting only the distinct ones).

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

The square root of 3180242 is about 1783.3233021525. The cubic root of 3180242 is about 147.0573456981.

The spelling of 3180242 in words is "three million, one hundred eighty thousand, two hundred forty-two".

Divisors: 1 2 13 26 97 169 194 338 1261 2522 9409 16393 18818 32786 122317 244634 1590121 3180242