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70041457 is a prime number
BaseRepresentation
bin1000010110010…
…11111101110001
311212210110211001
410023023331301
5120412311312
610541122001
71510225333
oct413137561
9155713731
1070041457
113659a202
121b559301
1311684665
149433453
156238057
hex42cbf71

70041457 has 2 divisors, whose sum is σ = 70041458. Its totient is φ = 70041456.

The previous prime is 70041403. The next prime is 70041497. The reversal of 70041457 is 75414007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70040161 + 1296 = 8369^2 + 36^2 .

It is a cyclic number.

It is not a de Polignac number, because 70041457 - 219 = 69517169 is a prime.

It is not a weakly prime, because it can be changed into another prime (70041497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35020728 + 35020729.

It is an arithmetic number, because the mean of its divisors is an integer number (35020729).

Almost surely, 270041457 is an apocalyptic number.

It is an amenable number.

70041457 is a deficient number, since it is larger than the sum of its proper divisors (1).

70041457 is an equidigital number, since it uses as much as digits as its factorization.

70041457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 70041457 is about 8369.0774282474. The cubic root of 70041457 is about 412.2098739839.

The spelling of 70041457 in words is "seventy million, forty-one thousand, four hundred fifty-seven".