Search a number
-
+
25696 = 251173
BaseRepresentation
bin110010001100000
31022020201
412101200
51310241
6314544
7134626
oct62140
938221
1025696
1118340
1212a54
13b908
149516
157931
hex6460

25696 has 24 divisors (see below), whose sum is σ = 55944. Its totient is φ = 11520.

The previous prime is 25693. The next prime is 25703. The reversal of 25696 is 69652.

25696 = T23 + T24 + ... + T54.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316 + ... + 388.

It is an arithmetic number, because the mean of its divisors is an integer number (2331).

225696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27972).

25696 is an abundant number, since it is smaller than the sum of its proper divisors (30248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25696 is a wasteful number, since it uses less digits than its factorization.

25696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 86 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 25696 is about 160.2997192761. The cubic root of 25696 is about 29.5090463494.

Subtracting 25696 from its reverse (69652), we obtain a triangular number (43956 = T296).

The spelling of 25696 in words is "twenty-five thousand, six hundred ninety-six".

Divisors: 1 2 4 8 11 16 22 32 44 73 88 146 176 292 352 584 803 1168 1606 2336 3212 6424 12848 25696