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2143076 = 221341213
BaseRepresentation
bin1000001011001101100100
311000212202012
420023031210
51022034301
6113533352
724134015
oct10131544
94025665
102143076
111234141
12874258
135a05c0
143db00c
152c4ebb
hex20b364

2143076 has 12 divisors (see below), whose sum is σ = 4038972. Its totient is φ = 989088.

The previous prime is 2143073. The next prime is 2143081. The reversal of 2143076 is 6703412.

It can be written as a sum of positive squares in 2 ways, for example, as 1464100 + 678976 = 1210^2 + 824^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2143073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20555 + ... + 20658.

It is an arithmetic number, because the mean of its divisors is an integer number (336581).

22143076 is an apocalyptic number.

2143076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2143076 is a deficient number, since it is larger than the sum of its proper divisors (1895896).

2143076 is a wasteful number, since it uses less digits than its factorization.

2143076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41230 (or 41228 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2143076 is about 1463.9248614598. The cubic root of 2143076 is about 128.9275879082.

Adding to 2143076 its reverse (6703412), we get a palindrome (8846488).

The spelling of 2143076 in words is "two million, one hundred forty-three thousand, seventy-six".

Divisors: 1 2 4 13 26 52 41213 82426 164852 535769 1071538 2143076