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75323351401 = 2744512
BaseRepresentation
bin100011000100110011…
…1110010000101101001
321012102102011201011121
41012021213302011221
52213230234221101
654334132455241
75304403631404
oct1061147620551
9235372151147
1075323351401
1129a43082841
121272177a521
13714528ba1c
143907a08d3b
151e5cb3a0a1
hex11899f2169

75323351401 has 3 divisors (see below), whose sum is σ = 75323625853. Its totient is φ = 75323076950.

The previous prime is 75323351393. The next prime is 75323351417. The reversal of 75323351401 is 10415332357.

The square root of 75323351401 is 274451.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10415332357 = 12782010491.

It is not a de Polignac number, because 75323351401 - 23 = 75323351393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75323351101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 137226 + ... + 411676.

Almost surely, 275323351401 is an apocalyptic number.

75323351401 is the 274451-st square number.

75323351401 is the 137226-th centered octagonal number.

It is an amenable number.

75323351401 is a deficient number, since it is larger than the sum of its proper divisors (274452).

75323351401 is an frugal number, since it uses more digits than its factorization.

75323351401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548902 (or 274451 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

Adding to 75323351401 its reverse (10415332357), we get a palindrome (85738683758).

The spelling of 75323351401 in words is "seventy-five billion, three hundred twenty-three million, three hundred fifty-one thousand, four hundred one".

Divisors: 1 274451 75323351401