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75057361 is a prime number
BaseRepresentation
bin1000111100101…
…00100011010001
312020020022100021
410132110203101
5123203313421
611240423441
71600656061
oct436244321
9166208307
1075057361
1139405785
1221177b81
131271c752
149d7b3a1
1568c9341
hex47948d1

75057361 has 2 divisors, whose sum is σ = 75057362. Its totient is φ = 75057360.

The previous prime is 75057343. The next prime is 75057373. The reversal of 75057361 is 16375057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58614336 + 16443025 = 7656^2 + 4055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75057361 is a prime.

It is not a weakly prime, because it can be changed into another prime (75057761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37528680 + 37528681.

It is an arithmetic number, because the mean of its divisors is an integer number (37528681).

Almost surely, 275057361 is an apocalyptic number.

It is an amenable number.

75057361 is a deficient number, since it is larger than the sum of its proper divisors (1).

75057361 is an equidigital number, since it uses as much as digits as its factorization.

75057361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 75057361 is about 8663.5651437500. The cubic root of 75057361 is about 421.8238166785.

The spelling of 75057361 in words is "seventy-five million, fifty-seven thousand, three hundred sixty-one".