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75852481 is a prime number
BaseRepresentation
bin1001000010101…
…10101011000001
312021201201001011
410201112223001
5123404234411
611305440521
71610510155
oct441265301
9167651034
1075852481
11398a9101
12214a0141
131293a633
14a107065
1569d4c21
hex4856ac1

75852481 has 2 divisors, whose sum is σ = 75852482. Its totient is φ = 75852480.

The previous prime is 75852467. The next prime is 75852527. The reversal of 75852481 is 18425857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 19000881 = 7540^2 + 4359^2 .

It is a cyclic number.

It is not a de Polignac number, because 75852481 - 25 = 75852449 is a prime.

It is a super-2 number, since 2×758524812 = 11507197747710722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75852421) 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, 37926240 + 37926241.

It is an arithmetic number, because the mean of its divisors is an integer number (37926241).

Almost surely, 275852481 is an apocalyptic number.

It is an amenable number.

75852481 is a deficient number, since it is larger than the sum of its proper divisors (1).

75852481 is an equidigital number, since it uses as much as digits as its factorization.

75852481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89600, while the sum is 40.

The square root of 75852481 is about 8709.3329824964. The cubic root of 75852481 is about 423.3081175521.

The spelling of 75852481 in words is "seventy-five million, eight hundred fifty-two thousand, four hundred eighty-one".