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138538313 = 596013907
BaseRepresentation
bin10000100000111…
…10110101001001
3100122200110211122
420100132311021
5240431211223
621425205025
73301361534
oct1020366511
9318613748
10138538313
1171223981
123a490775
1322917c44
1414583a1b
15c2685c8
hex841ed49

138538313 has 8 divisors (see below), whose sum is σ = 141156960. Its totient is φ = 135928800.

The previous prime is 138538297. The next prime is 138538319. The reversal of 138538313 is 313835831.

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

It is a cyclic number.

It is not a de Polignac number, because 138538313 - 24 = 138538297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138538319) 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, 33506 + ... + 37412.

It is an arithmetic number, because the mean of its divisors is an integer number (17644620).

Almost surely, 2138538313 is an apocalyptic number.

It is an amenable number.

138538313 is a deficient number, since it is larger than the sum of its proper divisors (2618647).

138538313 is an equidigital number, since it uses as much as digits as its factorization.

138538313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567.

The product of its digits is 25920, while the sum is 35.

The square root of 138538313 is about 11770.2299467767. The cubic root of 138538313 is about 517.4359888775.

The spelling of 138538313 in words is "one hundred thirty-eight million, five hundred thirty-eight thousand, three hundred thirteen".

Divisors: 1 59 601 3907 35459 230513 2348107 138538313