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8025269 = 72163781
BaseRepresentation
bin11110100111010010110101
3120002201121012
4132213102311
54023302034
6444002005
7125133200
oct36472265
916081535
108025269
11459155a
122830305
13187caa5
1410cc937
15a87cce
hex7a74b5

8025269 has 6 divisors (see below), whose sum is σ = 9335574. Its totient is φ = 6878760.

The previous prime is 8025253. The next prime is 8025271. The reversal of 8025269 is 9625208.

8025269 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4558225 + 3467044 = 2135^2 + 1862^2 .

It is not a de Polignac number, because 8025269 - 24 = 8025253 is a prime.

It is a super-2 number, since 2×80252692 = 128809885044722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8025169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81842 + ... + 81939.

It is an arithmetic number, because the mean of its divisors is an integer number (1555929).

Almost surely, 28025269 is an apocalyptic number.

It is an amenable number.

8025269 is a deficient number, since it is larger than the sum of its proper divisors (1310305).

8025269 is a wasteful number, since it uses less digits than its factorization.

8025269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163795 (or 163788 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8025269 is about 2832.8905732485. The cubic root of 8025269 is about 200.2103536791.

The spelling of 8025269 in words is "eight million, twenty-five thousand, two hundred sixty-nine".

Divisors: 1 7 49 163781 1146467 8025269