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25304053213 = 83990730773
BaseRepresentation
bin10111100100001111…
…010011010111011101
32102022111001002102001
4113210033103113131
5403310314200323
615342521402301
71554025621615
oct274417232735
972274032361
1025304053213
11a80552977a
124aa2339391
13250352316a
1413208d3a45
159d17323ad
hex5e43d35dd

25304053213 has 8 divisors (see below), whose sum is σ = 25612338528. Its totient is φ = 24995849424.

The previous prime is 25304053199. The next prime is 25304053249. The reversal of 25304053213 is 31235040352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25304053213 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 (25304053013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806895 + ... + 837667.

It is an arithmetic number, because the mean of its divisors is an integer number (3201542316).

Almost surely, 225304053213 is an apocalyptic number.

It is an amenable number.

25304053213 is a deficient number, since it is larger than the sum of its proper divisors (308285315).

25304053213 is an equidigital number, since it uses as much as digits as its factorization.

25304053213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40763.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 25304053213 its reverse (31235040352), we get a palindrome (56539093565).

The spelling of 25304053213 in words is "twenty-five billion, three hundred four million, fifty-three thousand, two hundred thirteen".

Divisors: 1 83 9907 30773 822281 2554159 304868111 25304053213