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25300213 = 121720789
BaseRepresentation
bin110000010000…
…0110011110101
31202121101100221
41200200303311
522434101323
62302134341
7425022361
oct140406365
952541327
1025300213
1113310474
1285813b1
13531aa53
1435082a1
15234b55d
hex1820cf5

25300213 has 4 divisors (see below), whose sum is σ = 25322220. Its totient is φ = 25278208.

The previous prime is 25300189. The next prime is 25300237. The reversal of 25300213 is 31200352.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25300189) and next prime (25300237).

It can be written as a sum of positive squares in 2 ways, for example, as 16016004 + 9284209 = 4002^2 + 3047^2 .

It is a cyclic number.

It is not a de Polignac number, because 25300213 - 25 = 25300181 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 (25300243) 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 3 ways as a sum of consecutive naturals, for example, 9178 + ... + 11611.

It is an arithmetic number, because the mean of its divisors is an integer number (6330555).

Almost surely, 225300213 is an apocalyptic number.

It is an amenable number.

25300213 is a deficient number, since it is larger than the sum of its proper divisors (22007).

25300213 is a wasteful number, since it uses less digits than its factorization.

25300213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22006.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 25300213 is about 5029.9317092780. The cubic root of 25300213 is about 293.5675572715.

Adding to 25300213 its reverse (31200352), we get a palindrome (56500565).

The spelling of 25300213 in words is "twenty-five million, three hundred thousand, two hundred thirteen".

Divisors: 1 1217 20789 25300213