Search a number
-
+
4140286 = 22070143
BaseRepresentation
bin1111110010110011111110
321210100101221
433302303332
52024442121
6224423554
750122543
oct17626376
97710357
104140286
112378727
121477bba
13b1c697
1479abca
1556bb41
hex3f2cfe

4140286 has 4 divisors (see below), whose sum is σ = 6210432. Its totient is φ = 2070142.

The previous prime is 4140281. The next prime is 4140287. The reversal of 4140286 is 6820414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6820414 = 23410207.

It is a self number, because there is not a number n which added to its sum of digits gives 4140286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035070 + ... + 1035073.

It is an arithmetic number, because the mean of its divisors is an integer number (1552608).

Almost surely, 24140286 is an apocalyptic number.

4140286 is a deficient number, since it is larger than the sum of its proper divisors (2070146).

4140286 is a wasteful number, since it uses less digits than its factorization.

4140286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070145.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4140286 is about 2034.7692743896. The cubic root of 4140286 is about 160.5745748038.

The spelling of 4140286 in words is "four million, one hundred forty thousand, two hundred eighty-six".

Divisors: 1 2 2070143 4140286