Search a number
-
+
6810142 = 231109841
BaseRepresentation
bin11001111110101000011110
3110210222202111
4121332220132
53220411032
6401544234
7111612433
oct31765036
913728674
106810142
113931619
12234507a
131545991
14c93b8a
158e7c47
hex67ea1e

6810142 has 8 divisors (see below), whose sum is σ = 10544832. Its totient is φ = 3295200.

The previous prime is 6810131. The next prime is 6810143. The reversal of 6810142 is 2410186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6810143) 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, 54859 + ... + 54982.

It is an arithmetic number, because the mean of its divisors is an integer number (1318104).

Almost surely, 26810142 is an apocalyptic number.

6810142 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6810142 is a deficient number, since it is larger than the sum of its proper divisors (3734690).

6810142 is a wasteful number, since it uses less digits than its factorization.

6810142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109874.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 6810142 is about 2609.6248772573. The cubic root of 6810142 is about 189.5477888306.

The spelling of 6810142 in words is "six million, eight hundred ten thousand, one hundred forty-two".

Divisors: 1 2 31 62 109841 219682 3405071 6810142