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2989485 = 325312143
BaseRepresentation
bin1011011001110110101101
312121212210200
423121312231
51231130420
6144024113
734260462
oct13316655
95555720
102989485
111762054
121002039
13808935
1457b669
153e0b90
hex2d9dad

2989485 has 24 divisors (see below), whose sum is σ = 5351424. Its totient is φ = 1542240.

The previous prime is 2989451. The next prime is 2989487. The reversal of 2989485 is 5849892.

It is not a de Polignac number, because 2989485 - 211 = 2987437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an Ulam number.

2989485 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2989485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989487) 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, 324 + ... + 2466.

It is an arithmetic number, because the mean of its divisors is an integer number (222976).

22989485 is an apocalyptic number.

It is an amenable number.

2989485 is a deficient number, since it is larger than the sum of its proper divisors (2361939).

2989485 is a wasteful number, since it uses less digits than its factorization.

2989485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2182 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 2989485 is about 1729.0127240712. The cubic root of 2989485 is about 144.0562569542.

The spelling of 2989485 in words is "two million, nine hundred eighty-nine thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 31 45 93 155 279 465 1395 2143 6429 10715 19287 32145 66433 96435 199299 332165 597897 996495 2989485