Search a number
-
+
8249197 = 11749927
BaseRepresentation
bin11111011101111101101101
3120112002202211
4133131331231
54102433242
6452450421
7130055065
oct37357555
916462684
108249197
114724820
122919a11
13192a9a8
14114a3a5
15ace317
hex7ddf6d

8249197 has 4 divisors (see below), whose sum is σ = 8999136. Its totient is φ = 7499260.

The previous prime is 8249191. The next prime is 8249207. The reversal of 8249197 is 7919428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8249197 is a prime.

It is a super-2 number, since 2×82491972 = 136098502289618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249191) 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, 374953 + ... + 374974.

It is an arithmetic number, because the mean of its divisors is an integer number (2249784).

Almost surely, 28249197 is an apocalyptic number.

It is an amenable number.

8249197 is a deficient number, since it is larger than the sum of its proper divisors (749939).

8249197 is a wasteful number, since it uses less digits than its factorization.

8249197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749938.

The product of its digits is 36288, while the sum is 40.

The square root of 8249197 is about 2872.1415355097. The cubic root of 8249197 is about 202.0554450290.

The spelling of 8249197 in words is "eight million, two hundred forty-nine thousand, one hundred ninety-seven".

Divisors: 1 11 749927 8249197