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9139441 = 231572531
BaseRepresentation
bin100010110111…
…010011110001
3122012022221211
4202313103301
54314430231
6523520121
7140453413
oct42672361
918168854
109139441
115182663
123089041
131b7cc6c
1412dc9b3
15c07eb1
hex8b74f1

9139441 has 8 divisors (see below), whose sum is σ = 9601344. Its totient is φ = 8682960.

The previous prime is 9139439. The next prime is 9139453. The reversal of 9139441 is 1449319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9139441 - 21 = 9139439 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9139841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2346 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (1200168).

Almost surely, 29139441 is an apocalyptic number.

It is an amenable number.

9139441 is a deficient number, since it is larger than the sum of its proper divisors (461903).

9139441 is a wasteful number, since it uses less digits than its factorization.

9139441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its digits is 3888, while the sum is 31.

The square root of 9139441 is about 3023.1508397697. The cubic root of 9139441 is about 209.0771370376.

The spelling of 9139441 in words is "nine million, one hundred thirty-nine thousand, four hundred forty-one".

Divisors: 1 23 157 2531 3611 58213 397367 9139441