Search a number
-
+
2142894 = 231383331
BaseRepresentation
bin1000001011001010101110
311000212111110
420023022232
51022033034
6113532450
724133335
oct10131256
94025443
102142894
111233a96
12874126
135a04b0
143dad1c
152c4de9
hex20b2ae

2142894 has 32 divisors (see below), whose sum is σ = 4685184. Its totient is φ = 649440.

The previous prime is 2142883. The next prime is 2142911. The reversal of 2142894 is 4982412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6309 + ... + 6639.

It is an arithmetic number, because the mean of its divisors is an integer number (146412).

22142894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2342592).

2142894 is an abundant number, since it is smaller than the sum of its proper divisors (2542290).

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

2142894 is a wasteful number, since it uses less digits than its factorization.

2142894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its digits is 4608, while the sum is 30.

The square root of 2142894 is about 1463.8626984796. The cubic root of 2142894 is about 128.9239380944.

The spelling of 2142894 in words is "two million, one hundred forty-two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 13 26 39 78 83 166 249 331 498 662 993 1079 1986 2158 3237 4303 6474 8606 12909 25818 27473 54946 82419 164838 357149 714298 1071447 2142894