Search a number
-
+
8241881 = 11372937
BaseRepresentation
bin11111011100001011011001
3120111201201212
4133130023121
54102220011
6452352505
7130024544
oct37341331
916451655
108241881
11471a27a
122915735
13192756b
14114785b
15acc08b
hex7dc2d9

8241881 has 4 divisors (see below), whose sum is σ = 8314932. Its totient is φ = 8168832.

The previous prime is 8241859. The next prime is 8241899. The reversal of 8241881 is 1881428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 4305625 = 1984^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 8241881 - 210 = 8240857 is a prime.

It is a super-2 number, since 2×82418812 = 135857204836322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8241851) 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, 36356 + ... + 36581.

It is an arithmetic number, because the mean of its divisors is an integer number (2078733).

Almost surely, 28241881 is an apocalyptic number.

It is an amenable number.

8241881 is a deficient number, since it is larger than the sum of its proper divisors (73051).

8241881 is a wasteful number, since it uses less digits than its factorization.

8241881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73050.

The product of its digits is 4096, while the sum is 32.

The square root of 8241881 is about 2870.8676388855. The cubic root of 8241881 is about 201.9956947748.

The spelling of 8241881 in words is "eight million, two hundred forty-one thousand, eight hundred eighty-one".

Divisors: 1 113 72937 8241881