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9928093 = 71418299
BaseRepresentation
bin100101110111…
…110110011101
3200200101210011
4211313312131
510020144333
6552443221
7150246610
oct45676635
920611704
109928093
11567113a
1233a9511
132097c16
141466177
15d119cd
hex977d9d

9928093 has 4 divisors (see below), whose sum is σ = 11346400. Its totient is φ = 8509788.

The previous prime is 9928081. The next prime is 9928129. The reversal of 9928093 is 3908299.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3908299 = 16132423.

It is a de Polignac number, because none of the positive numbers 2k-9928093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709143 + ... + 709156.

It is an arithmetic number, because the mean of its divisors is an integer number (2836600).

Almost surely, 29928093 is an apocalyptic number.

It is an amenable number.

9928093 is a deficient number, since it is larger than the sum of its proper divisors (1418307).

9928093 is a wasteful number, since it uses less digits than its factorization.

9928093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418306.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 9928093 is about 3150.8876527099. The cubic root of 9928093 is about 214.9258298332.

The spelling of 9928093 in words is "nine million, nine hundred twenty-eight thousand, ninety-three".

Divisors: 1 7 1418299 9928093