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75480893 is a prime number
BaseRepresentation
bin1000111111110…
…11111100111101
312021000211022122
410133323330331
5123310342033
611253452325
71604401625
oct437737475
9167024278
1075480893
1139674a04
12213410a5
131283a467
14a04b885
15695ea98
hex47fbf3d

75480893 has 2 divisors, whose sum is σ = 75480894. Its totient is φ = 75480892.

The previous prime is 75480869. The next prime is 75480991. The reversal of 75480893 is 39808457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57350329 + 18130564 = 7573^2 + 4258^2 .

It is a cyclic number.

It is not a de Polignac number, because 75480893 - 210 = 75479869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75480803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37740446 + 37740447.

It is an arithmetic number, because the mean of its divisors is an integer number (37740447).

Almost surely, 275480893 is an apocalyptic number.

It is an amenable number.

75480893 is a deficient number, since it is larger than the sum of its proper divisors (1).

75480893 is an equidigital number, since it uses as much as digits as its factorization.

75480893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 75480893 is about 8687.9740446205. The cubic root of 75480893 is about 422.6157483130.

The spelling of 75480893 in words is "seventy-five million, four hundred eighty thousand, eight hundred ninety-three".