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25306463 = 71323107113
BaseRepresentation
bin110000010001…
…0010101011111
31202121200221102
41200202111133
522434301323
62302223315
7425046530
oct140422537
952550842
1025306463
1113315136
128584b3b
135320850
14350a687
15234d328
hex182255f

25306463 has 32 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 18805248.

The previous prime is 25306453. The next prime is 25306469. The reversal of 25306463 is 36460352.

It is not a de Polignac number, because 25306463 - 212 = 25302367 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25306469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223895 + ... + 224007.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 225306463 is an apocalyptic number.

25306463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25306463 is a deficient number, since it is larger than the sum of its proper divisors (7788193).

25306463 is a wasteful number, since it uses less digits than its factorization.

25306463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 25306463 is about 5030.5529517142. The cubic root of 25306463 is about 293.5917289542.

The spelling of 25306463 in words is "twenty-five million, three hundred six thousand, four hundred sixty-three".