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25047243 = 3213972207
BaseRepresentation
bin101111110001…
…1000011001011
31202010112100200
41133203003023
522403002433
62252503243
7422620014
oct137430313
952115320
1025047243
1113158401
12847ab23
13525c870
14348000b
1522eb613
hex17e30cb

25047243 has 24 divisors (see below), whose sum is σ = 39381888. Its totient is φ = 15247872.

The previous prime is 25047229. The next prime is 25047247. The reversal of 25047243 is 34274052.

It is not a de Polignac number, because 25047243 - 24 = 25047227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25047247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10246 + ... + 12452.

It is an arithmetic number, because the mean of its divisors is an integer number (1640912).

Almost surely, 225047243 is an apocalyptic number.

25047243 is a deficient number, since it is larger than the sum of its proper divisors (14334645).

25047243 is a wasteful number, since it uses less digits than its factorization.

25047243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 25047243 is about 5004.7220702053. The cubic root of 25047243 is about 292.5858437497.

The spelling of 25047243 in words is "twenty-five million, forty-seven thousand, two hundred forty-three".

Divisors: 1 3 9 13 39 97 117 291 873 1261 2207 3783 6621 11349 19863 28691 86073 214079 258219 642237 1926711 2783027 8349081 25047243