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25313471 = 6725639
BaseRepresentation
bin110000010010…
…0000010111111
31202122001112222
41200210002333
522440012341
62302315555
7425106131
oct140440277
952561488
1025313471
111331a427
128588bbb
135323ab1
14350d051
15235044b
hex18240bf

25313471 has 6 divisors (see below), whose sum is σ = 25701480. Its totient is φ = 24931236.

The previous prime is 25313447. The next prime is 25313503. The reversal of 25313471 is 17431352.

It is not a de Polignac number, because 25313471 - 222 = 21119167 is a prime.

It is a super-3 number, since 3×253134713 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25313471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25313371) 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 5 ways as a sum of consecutive naturals, for example, 1670 + ... + 7308.

It is an arithmetic number, because the mean of its divisors is an integer number (4283580).

Almost surely, 225313471 is an apocalyptic number.

25313471 is a deficient number, since it is larger than the sum of its proper divisors (388009).

25313471 is an frugal number, since it uses more digits than its factorization.

25313471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773 (or 5706 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 25313471 is about 5031.2494472049. The cubic root of 25313471 is about 293.6188274461.

The spelling of 25313471 in words is "twenty-five million, three hundred thirteen thousand, four hundred seventy-one".

Divisors: 1 67 4489 5639 377813 25313471