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138227327 = 743795813
BaseRepresentation
bin10000011110100…
…10111001111111
3100122002200020122
420033102321333
5240341233302
621414405155
73265625060
oct1017227177
9318080218
10138227327
1171031267
123a3607bb
1322839524
1414502567
15c2063a2
hex83d2e7f

138227327 has 16 divisors (see below), whose sum is σ = 163722240. Its totient is φ = 114240672.

The previous prime is 138227321. The next prime is 138227389. The reversal of 138227327 is 723722831.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-138227327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138227321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20873 + ... + 26685.

It is an arithmetic number, because the mean of its divisors is an integer number (10232640).

Almost surely, 2138227327 is an apocalyptic number.

138227327 is a deficient number, since it is larger than the sum of its proper divisors (25494913).

138227327 is an equidigital number, since it uses as much as digits as its factorization.

138227327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942.

The product of its digits is 28224, while the sum is 35.

The square root of 138227327 is about 11757.0118227380. The cubic root of 138227327 is about 517.0485246903.

The spelling of 138227327 in words is "one hundred thirty-eight million, two hundred twenty-seven thousand, three hundred twenty-seven".

Divisors: 1 7 43 79 301 553 3397 5813 23779 40691 249959 459227 1749713 3214589 19746761 138227327