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1108228081 is a prime number
BaseRepresentation
bin100001000001110…
…0011011111110001
32212020022211010111
41002003203133301
54232201244311
6301545101321
736314532442
oct10203433761
92766284114
101108228081
11519625184
1226b187841
131487a1b7c
14a72812c9
156745dd21
hex420e37f1

1108228081 has 2 divisors, whose sum is σ = 1108228082. Its totient is φ = 1108228080.

The previous prime is 1108228063. The next prime is 1108228091. The reversal of 1108228081 is 1808228011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081094400 + 27133681 = 32880^2 + 5209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108228081 - 211 = 1108226033 is a prime.

It is a super-2 number, since 2×11082280812 = 2456338959033885122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1108228091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554114040 + 554114041.

It is an arithmetic number, because the mean of its divisors is an integer number (554114041).

Almost surely, 21108228081 is an apocalyptic number.

It is an amenable number.

1108228081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108228081 is an equidigital number, since it uses as much as digits as its factorization.

1108228081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 1108228081 is about 33290.0597926769. The cubic root of 1108228081 is about 1034.8475682381.

The spelling of 1108228081 in words is "one billion, one hundred eight million, two hundred twenty-eight thousand, eighty-one".