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88100081 is a prime number
BaseRepresentation
bin1010100000001…
…00110011110001
320010202221120222
411100010303301
5140023200311
612424142425
72116560356
oct520046361
9203687528
1088100081
1145803993
1225607a15
1315338234
14b9b462d
157b03adb
hex5404cf1

88100081 has 2 divisors, whose sum is σ = 88100082. Its totient is φ = 88100080.

The previous prime is 88100059. The next prime is 88100083. The reversal of 88100081 is 18000188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69472225 + 18627856 = 8335^2 + 4316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88100081 is a prime.

It is a super-2 number, since 2×881000812 = 15523248544413122, which contains 22 as substring.

Together with 88100083, 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 88100081.

It is not a weakly prime, because it can be changed into another prime (88100083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44050040 + 44050041.

It is an arithmetic number, because the mean of its divisors is an integer number (44050041).

Almost surely, 288100081 is an apocalyptic number.

It is an amenable number.

88100081 is a deficient number, since it is larger than the sum of its proper divisors (1).

88100081 is an equidigital number, since it uses as much as digits as its factorization.

88100081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 88100081 is about 9386.1643390684. The cubic root of 88100081 is about 444.9645740430.

The spelling of 88100081 in words is "eighty-eight million, one hundred thousand, eighty-one".