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2979249 = 372131559
BaseRepresentation
bin1011010111010110110001
312121100202120
423113112301
51230313444
6143504453
734215600
oct13272661
95540676
102979249
111755399
12bb8129
13804090
14577a37
153dcb19
hex2d75b1

2979249 has 24 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 1570464.

The previous prime is 2979239. The next prime is 2979253. The reversal of 2979249 is 9429792.

It is not a de Polignac number, because 2979249 - 29 = 2978737 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2979249.

It is not an unprimeable number, because it can be changed into a prime (2979239) 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 23 ways as a sum of consecutive naturals, for example, 1132 + ... + 2690.

It is an arithmetic number, because the mean of its divisors is an integer number (207480).

22979249 is an apocalyptic number.

It is an amenable number.

2979249 is a deficient number, since it is larger than the sum of its proper divisors (2000271).

2979249 is a wasteful number, since it uses less digits than its factorization.

2979249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1582 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 2979249 is about 1726.0501151473. The cubic root of 2979249 is about 143.8916526807.

The spelling of 2979249 in words is "two million, nine hundred seventy-nine thousand, two hundred forty-nine".

Divisors: 1 3 7 13 21 39 49 91 147 273 637 1559 1911 4677 10913 20267 32739 60801 76391 141869 229173 425607 993083 2979249