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3149289 = 3211132447
BaseRepresentation
bin1100000000110111101001
312221000000100
430000313221
51301234124
6151300013
735524413
oct14006751
95830010
103149289
111861120
12107a609
138635b0
145bd9b3
154231c9
hex300de9

3149289 has 24 divisors (see below), whose sum is σ = 5346432. Its totient is φ = 1761120.

The previous prime is 3149273. The next prime is 3149309. The reversal of 3149289 is 9829413.

It is not a de Polignac number, because 3149289 - 24 = 3149273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3149249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (222768).

Almost surely, 23149289 is an apocalyptic number.

3149289 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3149289 is a deficient number, since it is larger than the sum of its proper divisors (2197143).

3149289 is a wasteful number, since it uses less digits than its factorization.

3149289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477 (or 2474 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3149289 is about 1774.6236220675. The cubic root of 3149289 is about 146.5786909265.

Adding to 3149289 its product of digits (15552), we get a square (3164841 = 17792).

The spelling of 3149289 in words is "three million, one hundred forty-nine thousand, two hundred eighty-nine".

Divisors: 1 3 9 11 13 33 39 99 117 143 429 1287 2447 7341 22023 26917 31811 80751 95433 242253 286299 349921 1049763 3149289