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2182990 = 25419521
BaseRepresentation
bin1000010100111101001110
311002220111111
420110331032
51024323430
6114442234
724361255
oct10247516
94086444
102182990
111261127
1289337a
135b5814
1440b79c
152d1c2a
hex214f4e

2182990 has 16 divisors (see below), whose sum is σ = 3946320. Its totient is φ = 869440.

The previous prime is 2182949. The next prime is 2182991. The reversal of 2182990 is 992812.

2182990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182991) 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, 3930 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (246645).

22182990 is an apocalyptic number.

2182990 is a deficient number, since it is larger than the sum of its proper divisors (1763330).

2182990 is a wasteful number, since it uses less digits than its factorization.

2182990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947.

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

The square root of 2182990 is about 1477.4945008358. The cubic root of 2182990 is about 129.7230791722.

The spelling of 2182990 in words is "two million, one hundred eighty-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 419 521 838 1042 2095 2605 4190 5210 218299 436598 1091495 2182990