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75880001 is a prime number
BaseRepresentation
bin1001000010111…
…01011001000001
312021210002210102
410201131121001
5123411130001
611310212145
71610653331
oct441353101
9167702712
1075880001
113991784a
12214b4055
131294a012
14a1130c1
1569dce6b
hex485d641

75880001 has 2 divisors, whose sum is σ = 75880002. Its totient is φ = 75880000.

The previous prime is 75879989. The next prime is 75880039. The reversal of 75880001 is 10008857.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71385601 + 4494400 = 8449^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 75880001 - 222 = 71685697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75880201) 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, 37940000 + 37940001.

It is an arithmetic number, because the mean of its divisors is an integer number (37940001).

Almost surely, 275880001 is an apocalyptic number.

It is an amenable number.

75880001 is a deficient number, since it is larger than the sum of its proper divisors (1).

75880001 is an equidigital number, since it uses as much as digits as its factorization.

75880001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 75880001 is about 8710.9127535523. The cubic root of 75880001 is about 423.3593047630.

Adding to 75880001 its reverse (10008857), we get a palindrome (85888858).

The spelling of 75880001 in words is "seventy-five million, eight hundred eighty thousand, one".