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108247949231 is a prime number
BaseRepresentation
bin110010011010000010…
…1001001111110101111
3101100101222121120112212
41210310011021332233
53233142433333411
6121421201121035
710551325246502
oct1446405117657
9340358546485
10108247949231
11419a9166474
1218b9002917b
13a291527986
14534c62d139
152c383b168b
hex1934149faf

108247949231 has 2 divisors, whose sum is σ = 108247949232. Its totient is φ = 108247949230.

The previous prime is 108247949219. The next prime is 108247949233. The reversal of 108247949231 is 132949742801.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (132949742801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108247949231 - 218 = 108247687087 is a prime.

It is a super-2 number, since 2×1082479492312 (a number of 23 digits) contains 22 as substring.

Together with 108247949233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108247949231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108247949233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54123974615 + 54123974616.

It is an arithmetic number, because the mean of its divisors is an integer number (54123974616).

Almost surely, 2108247949231 is an apocalyptic number.

108247949231 is a deficient number, since it is larger than the sum of its proper divisors (1).

108247949231 is an equidigital number, since it uses as much as digits as its factorization.

108247949231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 108247949231 in words is "one hundred eight billion, two hundred forty-seven million, nine hundred forty-nine thousand, two hundred thirty-one".