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25684141 = 73669163
BaseRepresentation
bin110000111111…
…0100010101101
31210022220000111
41201332202231
523033343031
62314300021
7431211610
oct141764255
953286014
1025684141
111355296a
128727611
135423722
1435a8177
1523c51b1
hex187e8ad

25684141 has 4 divisors (see below), whose sum is σ = 29353312. Its totient is φ = 22014972.

The previous prime is 25684129. The next prime is 25684157. The reversal of 25684141 is 14148652.

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.

It is not a de Polignac number, because 25684141 - 29 = 25683629 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 (25684121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1834575 + ... + 1834588.

It is an arithmetic number, because the mean of its divisors is an integer number (7338328).

Almost surely, 225684141 is an apocalyptic number.

It is an amenable number.

25684141 is a deficient number, since it is larger than the sum of its proper divisors (3669171).

25684141 is an equidigital number, since it uses as much as digits as its factorization.

25684141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669170.

The product of its digits is 7680, while the sum is 31.

The square root of 25684141 is about 5067.9523478423. The cubic root of 25684141 is about 295.0450606261.

The spelling of 25684141 in words is "twenty-five million, six hundred eighty-four thousand, one hundred forty-one".

Divisors: 1 7 3669163 25684141