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108280831 is a prime number
BaseRepresentation
bin1100111010000…
…11101111111111
321112202020101011
412131003233333
5210204441311
614424500051
72453241361
oct635035777
9245666334
10108280831
1156137a9a
123031a627
13195829c9
1410548d31
15978d321
hex6743bff

108280831 has 2 divisors, whose sum is σ = 108280832. Its totient is φ = 108280830.

The previous prime is 108280819. The next prime is 108280841. The reversal of 108280831 is 138082801.

It is a strong prime.

It is an emirp because it is prime and its reverse (138082801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108280831 - 27 = 108280703 is a prime.

It is a super-2 number, since 2×1082808312 = 23449476724101122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108280793 and 108280802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108280841) 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 as a sum of consecutive naturals, namely, 54140415 + 54140416.

It is an arithmetic number, because the mean of its divisors is an integer number (54140416).

Almost surely, 2108280831 is an apocalyptic number.

108280831 is a deficient number, since it is larger than the sum of its proper divisors (1).

108280831 is an equidigital number, since it uses as much as digits as its factorization.

108280831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 108280831 is about 10405.8075611651. The cubic root of 108280831 is about 476.6327281709.

The spelling of 108280831 in words is "one hundred eight million, two hundred eighty thousand, eight hundred thirty-one".