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9888401 = 63115671
BaseRepresentation
bin100101101110…
…001010010001
3200121101100002
4211232022101
510012412101
6551535345
7150023105
oct45561221
920541302
109888401
115644336
12338a555
132082b33
141455905
15d04d6b
hex96e291

9888401 has 4 divisors (see below), whose sum is σ = 9904704. Its totient is φ = 9872100.

The previous prime is 9888397. The next prime is 9888443. The reversal of 9888401 is 1048889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9888401 - 22 = 9888397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9888451) 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, 7205 + ... + 8466.

It is an arithmetic number, because the mean of its divisors is an integer number (2476176).

Almost surely, 29888401 is an apocalyptic number.

It is an amenable number.

9888401 is a deficient number, since it is larger than the sum of its proper divisors (16303).

9888401 is a wasteful number, since it uses less digits than its factorization.

9888401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16302.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 9888401 is about 3144.5828022172. The cubic root of 9888401 is about 214.6390265177.

The spelling of 9888401 in words is "nine million, eight hundred eighty-eight thousand, four hundred one".

Divisors: 1 631 15671 9888401