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2990009 = 11674057
BaseRepresentation
bin1011011001111110111001
312121220112002
423121332321
51231140014
6144030345
734262141
oct13317671
95556462
102990009
111762490
1210023b5
13808c49
1457b921
153e0dde
hex2d9fb9

2990009 has 8 divisors (see below), whose sum is σ = 3311328. Its totient is φ = 2676960.

The previous prime is 2989997. The next prime is 2990017. The reversal of 2990009 is 9000992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2990009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (413916).

22990009 is an apocalyptic number.

It is an amenable number.

2990009 is a deficient number, since it is larger than the sum of its proper divisors (321319).

2990009 is a wasteful number, since it uses less digits than its factorization.

2990009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 2990009 is about 1729.1642489943. The cubic root of 2990009 is about 144.0646732387.

The spelling of 2990009 in words is "two million, nine hundred ninety thousand, nine".

Divisors: 1 11 67 737 4057 44627 271819 2990009