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9938293 = 731091249
BaseRepresentation
bin100101111010…
…010101110101
3200200220202221
4211322111311
510021011133
6553002341
7150321421
oct45722565
920626687
109938293
115678872
1233b33b1
13209c761
141469b81
15d14a2d
hex97a575

9938293 has 8 divisors (see below), whose sum is σ = 10175000. Its totient is φ = 9704448.

The previous prime is 9938281. The next prime is 9938297. The reversal of 9938293 is 3928399.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2137444 + 7800849 = 1462^2 + 2793^2 .

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

It is a 6-Lehmer number, since φ(9938293) divides (9938293-1)6.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9938293 is a prime.

It is a Duffinian number.

9938293 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938297) 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, 7333 + ... + 8581.

It is an arithmetic number, because the mean of its divisors is an integer number (1271875).

Almost surely, 29938293 is an apocalyptic number.

It is an amenable number.

9938293 is a deficient number, since it is larger than the sum of its proper divisors (236707).

9938293 is a wasteful number, since it uses less digits than its factorization.

9938293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431.

The product of its digits is 104976, while the sum is 43.

The square root of 9938293 is about 3152.5058287020. The cubic root of 9938293 is about 214.9994086878. Note that the first 3 decimals are identical.

The spelling of 9938293 in words is "nine million, nine hundred thirty-eight thousand, two hundred ninety-three".

Divisors: 1 73 109 1249 7957 91177 136141 9938293