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5642197 = 11512927
BaseRepresentation
bin10101100001011111010101
3101121122122021
4111201133111
52421022242
6320533141
765646361
oct25413725
911548567
105642197
113204080
121a811b1
1312271a2
14a6c2a1
15766b67
hex5617d5

5642197 has 4 divisors (see below), whose sum is σ = 6155136. Its totient is φ = 5129260.

The previous prime is 5642191. The next prime is 5642227. The reversal of 5642197 is 7912465.

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 not a de Polignac number, because 5642197 - 211 = 5640149 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 (5642191) 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 3 ways as a sum of consecutive naturals, for example, 256453 + ... + 256474.

It is an arithmetic number, because the mean of its divisors is an integer number (1538784).

Almost surely, 25642197 is an apocalyptic number.

It is an amenable number.

5642197 is a deficient number, since it is larger than the sum of its proper divisors (512939).

5642197 is a wasteful number, since it uses less digits than its factorization.

5642197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512938.

The product of its digits is 15120, while the sum is 34.

The square root of 5642197 is about 2375.3309243135. The cubic root of 5642197 is about 178.0257190460.

The spelling of 5642197 in words is "five million, six hundred forty-two thousand, one hundred ninety-seven".

Divisors: 1 11 512927 5642197