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9138069 = 331947379
BaseRepresentation
bin100010110110…
…111110010101
3122012021002000
4202312332111
54314404234
6523505513
7140446413
oct42667625
918167060
109138069
115181626
123088299
131b7c455
1412dc2b3
15c07899
hex8b6f95

9138069 has 32 divisors (see below), whose sum is σ = 14592000. Its totient is φ = 5633712.

The previous prime is 9138049. The next prime is 9138071. The reversal of 9138069 is 9608319.

It is not a de Polignac number, because 9138069 - 27 = 9137941 is a prime.

It is a super-2 number, since 2×91380692 = 167008610097522, which contains 22 as substring.

9138069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23922 + ... + 24300.

It is an arithmetic number, because the mean of its divisors is an integer number (456000).

Almost surely, 29138069 is an apocalyptic number.

It is an amenable number.

9138069 is a deficient number, since it is larger than the sum of its proper divisors (5453931).

9138069 is a wasteful number, since it uses less digits than its factorization.

9138069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 9138069 is about 3022.9239156816. The cubic root of 9138069 is about 209.0666743923.

The spelling of 9138069 in words is "nine million, one hundred thirty-eight thousand, sixty-nine".

Divisors: 1 3 9 19 27 47 57 141 171 379 423 513 893 1137 1269 2679 3411 7201 8037 10233 17813 21603 24111 53439 64809 160317 194427 338447 480951 1015341 3046023 9138069