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25230853 = 33774869
BaseRepresentation
bin110000000111…
…1111000000101
31202110212020001
41200033320011
522424341403
62300441301
7424313224
oct140177005
952425201
1025230853
111327334a
128549231
1352c52cb
1434cacbb
152335c1d
hex180fe05

25230853 has 4 divisors (see below), whose sum is σ = 25306060. Its totient is φ = 25155648.

The previous prime is 25230851. The next prime is 25230893. The reversal of 25230853 is 35803252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6723649 + 18507204 = 2593^2 + 4302^2 .

It is a cyclic number.

It is not a de Polignac number, because 25230853 - 21 = 25230851 is a prime.

It is a super-3 number, since 3×252308533 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230851) 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, 37098 + ... + 37771.

It is an arithmetic number, because the mean of its divisors is an integer number (6326515).

Almost surely, 225230853 is an apocalyptic number.

It is an amenable number.

25230853 is a deficient number, since it is larger than the sum of its proper divisors (75207).

25230853 is an equidigital number, since it uses as much as digits as its factorization.

25230853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75206.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 25230853 is about 5023.0322515389. The cubic root of 25230853 is about 293.2990419912.

The spelling of 25230853 in words is "twenty-five million, two hundred thirty thousand, eight hundred fifty-three".

Divisors: 1 337 74869 25230853