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4252986 = 2362917
BaseRepresentation
bin10000001110010100111010
322000002000000
4100032110322
52042043421
6231053430
751102243
oct20162472
98002000
104252986
112445371
121511276
13b5ba7a
147c9cca
15590226
hex40e53a

4252986 has 28 divisors (see below), whose sum is σ = 9568122. Its totient is φ = 1417176.

The previous prime is 4252961. The next prime is 4252987. The reversal of 4252986 is 6892524.

It is a happy number.

4252986 is a nontrivial binomial coefficient, being equal to C(2917, 2).

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 2047761 = 1485^2 + 1431^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4252986.

It is not an unprimeable number, because it can be changed into a prime (4252987) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1 + ... + 2916.

Almost surely, 24252986 is an apocalyptic number.

4252986 is the 2916-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4252986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4784061).

4252986 is an abundant number, since it is smaller than the sum of its proper divisors (5315136).

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

4252986 is an equidigital number, since it uses as much as digits as its factorization.

4252986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937 (or 2922 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 4252986 is about 2062.2768970243. The cubic root of 4252986 is about 162.0185164020.

The spelling of 4252986 in words is "four million, two hundred fifty-two thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 729 1458 2917 5834 8751 17502 26253 52506 78759 157518 236277 472554 708831 1417662 2126493 4252986