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2182493 = 23313061
BaseRepresentation
bin1000010100110101011101
311002212211002
420110311131
51024314433
6114440045
724356645
oct10246535
94085732
102182493
111260815
12893025
135b5521
1440b525
152d19e8
hex214d5d

2182493 has 8 divisors (see below), whose sum is σ = 2351616. Its totient is φ = 2019600.

The previous prime is 2182489. The next prime is 2182513. The reversal of 2182493 is 3942812.

2182493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2182493 - 22 = 2182489 is a prime.

It is a d-powerful number, because it can be written as 25 + 1 + 8 + 221 + 48 + 92 + 39 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182993) 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, 818 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (293952).

22182493 is an apocalyptic number.

2182493 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2182493 is a deficient number, since it is larger than the sum of its proper divisors (169123).

2182493 is a wasteful number, since it uses less digits than its factorization.

2182493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its digits is 3456, while the sum is 29.

The square root of 2182493 is about 1477.3263011265. The cubic root of 2182493 is about 129.7132337669.

The spelling of 2182493 in words is "two million, one hundred eighty-two thousand, four hundred ninety-three".

Divisors: 1 23 31 713 3061 70403 94891 2182493