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2164814 = 21763671
BaseRepresentation
bin1000010000100001001110
311001222120022
420100201032
51023233224
6114222142
724254261
oct10204116
94058508
102164814
111249503
12884952
135aa472
14404cd8
152cb65e
hex21084e

2164814 has 8 divisors (see below), whose sum is σ = 3438288. Its totient is φ = 1018720.

The previous prime is 2164807. The next prime is 2164817. The reversal of 2164814 is 4184612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31802 + ... + 31869.

It is an arithmetic number, because the mean of its divisors is an integer number (429786).

22164814 is an apocalyptic number.

2164814 is a deficient number, since it is larger than the sum of its proper divisors (1273474).

2164814 is a wasteful number, since it uses less digits than its factorization.

2164814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63690.

The product of its digits is 1536, while the sum is 26.

The square root of 2164814 is about 1471.3306902257. The cubic root of 2164814 is about 129.3620420793.

The spelling of 2164814 in words is "two million, one hundred sixty-four thousand, eight hundred fourteen".

Divisors: 1 2 17 34 63671 127342 1082407 2164814