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138853411 = 1129912289
BaseRepresentation
bin10000100011010…
…11110000100011
3100200021111001221
420101223300203
5241021302121
621440035511
73304143304
oct1021536043
9320244057
10138853411
1171419694
123a602b97
13229c84a8
14146267ab
15c2cbb41
hex846bc23

138853411 has 4 divisors (see below), whose sum is σ = 138877000. Its totient is φ = 138829824.

The previous prime is 138853397. The next prime is 138853417. The reversal of 138853411 is 114358831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 138853411 - 221 = 136756259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138853417) 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, 5155 + ... + 17443.

It is an arithmetic number, because the mean of its divisors is an integer number (34719250).

Almost surely, 2138853411 is an apocalyptic number.

138853411 is a deficient number, since it is larger than the sum of its proper divisors (23589).

138853411 is a wasteful number, since it uses less digits than its factorization.

138853411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23588.

The product of its digits is 11520, while the sum is 34.

The square root of 138853411 is about 11783.6077242923. The cubic root of 138853411 is about 517.8279853507.

The spelling of 138853411 in words is "one hundred thirty-eight million, eight hundred fifty-three thousand, four hundred eleven".

Divisors: 1 11299 12289 138853411