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5642101 = 7971419
BaseRepresentation
bin10101100001011101110101
3101121122111201
4111201131311
52421021401
6320532501
765646163
oct25413565
911548451
105642101
113203aa3
121a81131
13122712a
14a6c233
15766b01
hex561775

5642101 has 4 divisors (see below), whose sum is σ = 5713600. Its totient is φ = 5570604.

The previous prime is 5642099. The next prime is 5642191. The reversal of 5642101 is 1012465.

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: 1012465 = 5202493.

It is a cyclic number.

It is not a de Polignac number, because 5642101 - 21 = 5642099 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, 35631 + ... + 35788.

It is an arithmetic number, because the mean of its divisors is an integer number (1428400).

Almost surely, 25642101 is an apocalyptic number.

It is an amenable number.

5642101 is a deficient number, since it is larger than the sum of its proper divisors (71499).

5642101 is an equidigital number, since it uses as much as digits as its factorization.

5642101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71498.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5642101 is about 2375.3107165169. The cubic root of 5642101 is about 178.0247093586.

Adding to 5642101 its reverse (1012465), we get a palindrome (6654566).

The spelling of 5642101 in words is "five million, six hundred forty-two thousand, one hundred one".

Divisors: 1 79 71419 5642101