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4869909 = 331119863
BaseRepresentation
bin10010100100111100010101
3100011102021000
4102210330111
52221314114
6252213513
756251662
oct22447425
910142230
104869909
112826920
12176a299
131016805
1490aa69
15662e09
hex4a4f15

4869909 has 32 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 2792880.

The previous prime is 4869889. The next prime is 4869911. The reversal of 4869909 is 9099684.

It is not a de Polignac number, because 4869909 - 25 = 4869877 is a prime.

It is a Curzon number.

4869909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4869929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5212 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 24869909 is an apocalyptic number.

It is an amenable number.

4869909 is a deficient number, since it is larger than the sum of its proper divisors (3424491).

4869909 is a wasteful number, since it uses less digits than its factorization.

4869909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 4869909 is about 2206.7870309570. The cubic root of 4869909 is about 169.5015271223.

It can be divided in two parts, 4869 and 909, that added together give a triangular number (5778 = T107).

The spelling of 4869909 in words is "four million, eight hundred sixty-nine thousand, nine hundred nine".

Divisors: 1 3 9 11 19 27 33 57 99 171 209 297 513 627 863 1881 2589 5643 7767 9493 16397 23301 28479 49191 85437 147573 180367 256311 442719 541101 1623303 4869909