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4071825 = 325218097
BaseRepresentation
bin1111100010000110010001
321122212111100
433202012101
52020244300
6223135013
746416132
oct17420621
97585440
104071825
11233124a
121444469
13ac7484
1477dc89
15556700
hex3e2191

4071825 has 18 divisors (see below), whose sum is σ = 7293494. Its totient is φ = 2171520.

The previous prime is 4071797. The next prime is 4071827. The reversal of 4071825 is 5281704.

It can be written as a sum of positive squares in 3 ways, for example, as 7569 + 4064256 = 87^2 + 2016^2 .

It is not a de Polignac number, because 4071825 - 26 = 4071761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (4071827) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8824 + ... + 9273.

Almost surely, 24071825 is an apocalyptic number.

4071825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4071825 is a deficient number, since it is larger than the sum of its proper divisors (3221669).

4071825 is a wasteful number, since it uses less digits than its factorization.

4071825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113 (or 18105 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4071825 is about 2017.8763589477. The cubic root of 4071825 is about 159.6846000306.

The spelling of 4071825 in words is "four million, seventy-one thousand, eight hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 18097 54291 90485 162873 271455 452425 814365 1357275 4071825