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138476113 = 660720959
BaseRepresentation
bin10000100000011…
…11101001010001
3100122120022111221
420100033221101
5240422213423
621424005041
73301012306
oct1020175121
9318508457
10138476113
1171191176
123a460781
13228c5839
14145690ad
15c254e5d
hex840fa51

138476113 has 4 divisors (see below), whose sum is σ = 138503680. Its totient is φ = 138448548.

The previous prime is 138476081. The next prime is 138476119. The reversal of 138476113 is 311674831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311674831 = 1323974987.

It is a cyclic number.

It is not a de Polignac number, because 138476113 - 25 = 138476081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138476119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873 + ... + 17086.

It is an arithmetic number, because the mean of its divisors is an integer number (34625920).

Almost surely, 2138476113 is an apocalyptic number.

It is an amenable number.

138476113 is a deficient number, since it is larger than the sum of its proper divisors (27567).

138476113 is an equidigital number, since it uses as much as digits as its factorization.

138476113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27566.

The product of its digits is 12096, while the sum is 34.

The square root of 138476113 is about 11767.5873907951. The cubic root of 138476113 is about 517.3585389754.

The spelling of 138476113 in words is "one hundred thirty-eight million, four hundred seventy-six thousand, one hundred thirteen".

Divisors: 1 6607 20959 138476113