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70193089 is a prime number
BaseRepresentation
bin1000010111100…
…00111111000001
311220002011211001
410023300333001
5120432134324
610544252001
71511426401
oct413607701
9156064731
1070193089
113669311a
121b611001
1311708695
149472801
156267e44
hex42f0fc1

70193089 has 2 divisors, whose sum is σ = 70193090. Its totient is φ = 70193088.

The previous prime is 70193069. The next prime is 70193099. The reversal of 70193089 is 98039107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41216400 + 28976689 = 6420^2 + 5383^2 .

It is a cyclic number.

It is not a de Polignac number, because 70193089 - 211 = 70191041 is a prime.

It is not a weakly prime, because it can be changed into another prime (70193059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35096544 + 35096545.

It is an arithmetic number, because the mean of its divisors is an integer number (35096545).

Almost surely, 270193089 is an apocalyptic number.

It is an amenable number.

70193089 is a deficient number, since it is larger than the sum of its proper divisors (1).

70193089 is an equidigital number, since it uses as much as digits as its factorization.

70193089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 70193089 is about 8378.1315936192. The cubic root of 70193089 is about 412.5071224972.

The spelling of 70193089 in words is "seventy million, one hundred ninety-three thousand, eighty-nine".