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75253350401 = 257292814593
BaseRepresentation
bin100011000010101110…
…0110000000000000001
321012020112110021211222
41012011130300000001
52213104324203101
654323152244425
75302563632015
oct1060534600001
9235215407758
1075253350401
1129a07610a79
1212702240715
13713391c908
1438dc5c6545
151e5690e01b
hex1185730001

75253350401 has 4 divisors (see below), whose sum is σ = 75546165252. Its totient is φ = 74960535552.

The previous prime is 75253350391. The next prime is 75253350413. The reversal of 75253350401 is 10405335257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10405335257 = 11719887903.

It can be written as a sum of positive squares in 2 ways, for example, as 60883095025 + 14370255376 = 246745^2 + 119876^2 .

It is a cyclic number.

It is not a de Polignac number, because 75253350401 - 234 = 58073481217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75253350301) 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 in 3 ways as a sum of consecutive naturals, for example, 146407040 + ... + 146407553.

It is an arithmetic number, because the mean of its divisors is an integer number (18886541313).

Almost surely, 275253350401 is an apocalyptic number.

It is an amenable number.

75253350401 is a deficient number, since it is larger than the sum of its proper divisors (292814851).

75253350401 is a wasteful number, since it uses less digits than its factorization.

75253350401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292814850.

The product of its (nonzero) digits is 63000, while the sum is 35.

Adding to 75253350401 its reverse (10405335257), we get a palindrome (85658685658).

The spelling of 75253350401 in words is "seventy-five billion, two hundred fifty-three million, three hundred fifty thousand, four hundred one".

Divisors: 1 257 292814593 75253350401