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3139146 = 232732389
BaseRepresentation
bin1011111110011001001010
312220111002200
423332121022
51300423041
6151141030
735453013
oct13763112
95814080
103139146
11185453a
121074776
1385baaa
145ba00a
154201b6
hex2fe64a

3139146 has 24 divisors (see below), whose sum is σ = 6897540. Its totient is φ = 1031616.

The previous prime is 3139141. The next prime is 3139187. The reversal of 3139146 is 6419313.

It can be written as a sum of positive squares in 2 ways, for example, as 3101121 + 38025 = 1761^2 + 195^2 .

It is not an unprimeable number, because it can be changed into a prime (3139141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120 + ... + 2508.

Almost surely, 23139146 is an apocalyptic number.

3139146 is an abundant number, since it is smaller than the sum of its proper divisors (3758394).

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

3139146 is a wasteful number, since it uses less digits than its factorization.

3139146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2467 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 3139146 is about 1771.7635282396. The cubic root of 3139146 is about 146.4211583681.

The spelling of 3139146 in words is "three million, one hundred thirty-nine thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 73 146 219 438 657 1314 2389 4778 7167 14334 21501 43002 174397 348794 523191 1046382 1569573 3139146