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2142012 = 223178501
BaseRepresentation
bin1000001010111100111100
311000211021210
420022330330
51022021022
6113524420
724130635
oct10127474
94024253
102142012
111233364
12873710
1359cc82
143da88c
152c4a0c
hex20af3c

2142012 has 12 divisors (see below), whose sum is σ = 4998056. Its totient is φ = 714000.

The previous prime is 2142001. The next prime is 2142029. The reversal of 2142012 is 2102412.

2142012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 178501 = 2142012 / (2 + 1 + 4 + 2 + 0 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 89239 + ... + 89262.

22142012 is an apocalyptic number.

It is an amenable number.

2142012 is an abundant number, since it is smaller than the sum of its proper divisors (2856044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142012 is a wasteful number, since it uses less digits than its factorization.

2142012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178508 (or 178506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2142012 is about 1463.5614097126. The cubic root of 2142012 is about 128.9062476070.

Adding to 2142012 its reverse (2102412), we get a palindrome (4244424).

The spelling of 2142012 in words is "two million, one hundred forty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 178501 357002 535503 714004 1071006 2142012