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8238340025 = 521086130341
BaseRepresentation
bin1111010110000101…
…10001011110111001
3210021010220000221122
413223002301132321
5113333003340100
63441252115025
7411103510016
oct75302613671
923233800848
108238340025
113548367883
12171b005a75
13a13a32516
145821ca70d
153333c9985
hex1eb0b17b9

8238340025 has 12 divisors (see below), whose sum is σ = 10216818924. Its totient is φ = 6589848000.

The previous prime is 8238340007. The next prime is 8238340027. The reversal of 8238340025 is 5200438328.

It can be written as a sum of positive squares in 6 ways, for example, as 1132524409 + 7105815616 = 33653^2 + 84296^2 .

It is not a de Polignac number, because 8238340025 - 232 = 3943372729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8238340027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256355 + ... + 286695.

It is an arithmetic number, because the mean of its divisors is an integer number (851401577).

Almost surely, 28238340025 is an apocalyptic number.

It is an amenable number.

8238340025 is a deficient number, since it is larger than the sum of its proper divisors (1978478899).

8238340025 is a wasteful number, since it uses less digits than its factorization.

8238340025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41212 (or 41207 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 8238340025 is about 90765.3018779754. The cubic root of 8238340025 is about 2019.6676269955.

The spelling of 8238340025 in words is "eight billion, two hundred thirty-eight million, three hundred forty thousand, twenty-five".

Divisors: 1 5 25 10861 30341 54305 151705 271525 758525 329533601 1647668005 8238340025