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8493043231 is a prime number
BaseRepresentation
bin1111110100011100…
…11000111000011111
3210220220011022001201
413322032120320133
5114343204340411
63522431220331
7420315450661
oct77216307037
923826138051
108493043231
1136691130a2
1217903776a7
13a5473088a
145a7d6c531
1534a93c3c1
hex1fa398e1f

8493043231 has 2 divisors, whose sum is σ = 8493043232. Its totient is φ = 8493043230.

The previous prime is 8493043189. The next prime is 8493043241. The reversal of 8493043231 is 1323403948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8493043231 - 225 = 8459488799 is a prime.

It is a super-2 number, since 2×84930432312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8493043241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246521615 + 4246521616.

It is an arithmetic number, because the mean of its divisors is an integer number (4246521616).

Almost surely, 28493043231 is an apocalyptic number.

8493043231 is a deficient number, since it is larger than the sum of its proper divisors (1).

8493043231 is an equidigital number, since it uses as much as digits as its factorization.

8493043231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 8493043231 is about 92157.7084730301. The cubic root of 8493043231 is about 2040.2706317075.

The spelling of 8493043231 in words is "eight billion, four hundred ninety-three million, forty-three thousand, two hundred thirty-one".