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5642357 = 7806051
BaseRepresentation
bin10101100001100001110101
3101121122212012
4111201201311
52421023412
6320534005
765650010
oct25414165
911548765
105642357
113204206
121a81305
131227296
14a6c377
15766c22
hex561875

5642357 has 4 divisors (see below), whose sum is σ = 6448416. Its totient is φ = 4836300.

The previous prime is 5642323. The next prime is 5642359. The reversal of 5642357 is 7532465.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7532465 = 51506493.

It is not a de Polignac number, because 5642357 - 26 = 5642293 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 (5642359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403019 + ... + 403032.

It is an arithmetic number, because the mean of its divisors is an integer number (1612104).

Almost surely, 25642357 is an apocalyptic number.

It is an amenable number.

5642357 is a deficient number, since it is larger than the sum of its proper divisors (806059).

5642357 is an equidigital number, since it uses as much as digits as its factorization.

5642357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806058.

The product of its digits is 25200, while the sum is 32.

The square root of 5642357 is about 2375.3646035925. The cubic root of 5642357 is about 178.0274018329.

The spelling of 5642357 in words is "five million, six hundred forty-two thousand, three hundred fifty-seven".

Divisors: 1 7 806051 5642357