Search a number
-
+
8372881 = 117310427
BaseRepresentation
bin11111111100001010010001
3120202101102201
4133330022101
54120413011
6455243201
7131111506
oct37741221
916671381
108372881
1147a9740
122979501
13197208a
14117d4ad
15b05cc1
hex7fc291

8372881 has 8 divisors (see below), whose sum is σ = 9260064. Its totient is φ = 7506720.

The previous prime is 8372869. The next prime is 8372941. The reversal of 8372881 is 1882738.

8372881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8372881 - 211 = 8370833 is a prime.

It is a super-2 number, since 2×83728812 = 140210272480322, which contains 22 as substring.

It is an Ulam number.

8372881 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8372881.

It is not an unprimeable number, because it can be changed into a prime (8372801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4411 + ... + 6016.

It is an arithmetic number, because the mean of its divisors is an integer number (1157508).

Almost surely, 28372881 is an apocalyptic number.

It is an amenable number.

8372881 is a deficient number, since it is larger than the sum of its proper divisors (887183).

8372881 is a wasteful number, since it uses less digits than its factorization.

8372881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10511.

The product of its digits is 21504, while the sum is 37.

The square root of 8372881 is about 2893.5930950982. The cubic root of 8372881 is about 203.0602763728.

The spelling of 8372881 in words is "eight million, three hundred seventy-two thousand, eight hundred eighty-one".

Divisors: 1 11 73 803 10427 114697 761171 8372881