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87914081 is a prime number
BaseRepresentation
bin1010011110101…
…11011001100001
320010102111110002
411033113121201
5140001222311
612420145345
72115154163
oct517273141
9203374402
1087914081
1145697172
1225538255
13152a1688
14b966933
157ab893b
hex53d7661

87914081 has 2 divisors, whose sum is σ = 87914082. Its totient is φ = 87914080.

The previous prime is 87914077. The next prime is 87914131. The reversal of 87914081 is 18041978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 33744481 = 7360^2 + 5809^2 .

It is a cyclic number.

It is not a de Polignac number, because 87914081 - 22 = 87914077 is a prime.

It is a super-2 number, since 2×879140812 = 15457771276149122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87919081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43957040 + 43957041.

It is an arithmetic number, because the mean of its divisors is an integer number (43957041).

Almost surely, 287914081 is an apocalyptic number.

It is an amenable number.

87914081 is a deficient number, since it is larger than the sum of its proper divisors (1).

87914081 is an equidigital number, since it uses as much as digits as its factorization.

87914081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 87914081 is about 9376.2509032129. The cubic root of 87914081 is about 444.6512117752.

The spelling of 87914081 in words is "eighty-seven million, nine hundred fourteen thousand, eighty-one".