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2990218 = 271119417
BaseRepresentation
bin1011011010000010001010
312121220210211
423122002022
51231141333
6144031334
734262560
oct13320212
95556724
102990218
111762660
12100254a
1380907a
1457ba30
153e0ecd
hex2da08a

2990218 has 16 divisors (see below), whose sum is σ = 5592384. Its totient is φ = 1164960.

The previous prime is 2990213. The next prime is 2990227. The reversal of 2990218 is 8120992.

It is a self number, because there is not a number n which added to its sum of digits gives 2990218.

It is not an unprimeable number, because it can be changed into a prime (2990213) 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, 9555 + ... + 9862.

It is an arithmetic number, because the mean of its divisors is an integer number (349524).

22990218 is an apocalyptic number.

2990218 is a deficient number, since it is larger than the sum of its proper divisors (2602166).

2990218 is a wasteful number, since it uses less digits than its factorization.

2990218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19437.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2990218 is about 1729.2246817577. The cubic root of 2990218 is about 144.0680298412.

The spelling of 2990218 in words is "two million, nine hundred ninety thousand, two hundred eighteen".

Divisors: 1 2 7 11 14 22 77 154 19417 38834 135919 213587 271838 427174 1495109 2990218