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5642125 = 5345137
BaseRepresentation
bin10101100001011110001101
3101121122112121
4111201132031
52421022000
6320532541
765646226
oct25413615
911548477
105642125
113204015
121a81151
131227148
14a6c24d
15766b1a
hex56178d

5642125 has 8 divisors (see below), whose sum is σ = 7041528. Its totient is φ = 4513600.

The previous prime is 5642099. The next prime is 5642191. The reversal of 5642125 is 5212465.

It can be written as a sum of positive squares in 4 ways, for example, as 915849 + 4726276 = 957^2 + 2174^2 .

It is not a de Polignac number, because 5642125 - 27 = 5641997 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5642125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22444 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (880191).

Almost surely, 25642125 is an apocalyptic number.

It is an amenable number.

5642125 is a deficient number, since it is larger than the sum of its proper divisors (1399403).

5642125 is an equidigital number, since it uses as much as digits as its factorization.

5642125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45152 (or 45142 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 5642125 is about 2375.3157684822. The cubic root of 5642125 is about 178.0249617815.

The spelling of 5642125 in words is "five million, six hundred forty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 45137 225685 1128425 5642125