Search a number
-
+
28141061 = 135234139
BaseRepresentation
bin110101101011…
…0011000000101
31221221201021112
41223112120011
524201003221
62443054405
7461123624
oct153263005
957851245
1028141061
1114980883
129511405
135aa3b20
143a476bb
15270d15b
hex1ad6605

28141061 has 8 divisors (see below), whose sum is σ = 30371040. Its totient is φ = 25920432.

The previous prime is 28141051. The next prime is 28141073. The reversal of 28141061 is 16014182.

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

It is a cyclic number.

It is not a de Polignac number, because 28141061 - 26 = 28140997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28141031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4730 + ... + 8868.

It is an arithmetic number, because the mean of its divisors is an integer number (3796380).

Almost surely, 228141061 is an apocalyptic number.

It is an amenable number.

28141061 is a deficient number, since it is larger than the sum of its proper divisors (2229979).

28141061 is a wasteful number, since it uses less digits than its factorization.

28141061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 28141061 is about 5304.8148883821. The cubic root of 28141061 is about 304.1679769089.

The spelling of 28141061 in words is "twenty-eight million, one hundred forty-one thousand, sixty-one".

Divisors: 1 13 523 4139 6799 53807 2164697 28141061