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2990890 = 25742727
BaseRepresentation
bin1011011010001100101010
312121221201201
423122030222
51231202030
6144034414
734264540
oct13321452
95557651
102990890
111763111
121002a0a
13809476
1457bd90
153e12ca
hex2da32a

2990890 has 16 divisors (see below), whose sum is σ = 6152832. Its totient is φ = 1025424.

The previous prime is 2990881. The next prime is 2990893. The reversal of 2990890 is 980992.

2990890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2990893) 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 7 ways as a sum of consecutive naturals, for example, 21294 + ... + 21433.

It is an arithmetic number, because the mean of its divisors is an integer number (384552).

22990890 is an apocalyptic number.

2990890 is an abundant number, since it is smaller than the sum of its proper divisors (3161942).

2990890 is a wasteful number, since it uses less digits than its factorization.

2990890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42741.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2990890 is about 1729.4189775760. The cubic root of 2990890 is about 144.0788213024.

The spelling of 2990890 in words is "two million, nine hundred ninety thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 42727 85454 213635 299089 427270 598178 1495445 2990890