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9231393 = 39731723
BaseRepresentation
bin100011001101…
…110000100001
3122101000002110
4203031300201
54330401033
6525505533
7141315453
oct43156041
918330073
109231393
115235756
1231122a9
131bb2a82
1413242d3
15c25363
hex8cdc21

9231393 has 8 divisors (see below), whose sum is σ = 12435808. Its totient is φ = 6090624.

The previous prime is 9231379. The next prime is 9231401. The reversal of 9231393 is 3931329.

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

It is not a de Polignac number, because 9231393 - 26 = 9231329 is a prime.

It is a Duffinian number.

9231393 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9231393.

It is not an unprimeable number, because it can be changed into a prime (9231373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15571 + ... + 16152.

It is an arithmetic number, because the mean of its divisors is an integer number (1554476).

Almost surely, 29231393 is an apocalyptic number.

It is an amenable number.

9231393 is a deficient number, since it is larger than the sum of its proper divisors (3204415).

9231393 is a wasteful number, since it uses less digits than its factorization.

9231393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31823.

The product of its digits is 4374, while the sum is 30.

The square root of 9231393 is about 3038.3207533109. The cubic root of 9231393 is about 209.7759742486.

The spelling of 9231393 in words is "nine million, two hundred thirty-one thousand, three hundred ninety-three".

Divisors: 1 3 97 291 31723 95169 3077131 9231393