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138010873 = 71113137873
BaseRepresentation
bin10000011100111…
…10000011111001
3100121200200022211
420032132003321
5240312321443
621410015121
73264034030
oct1016360371
9317620284
10138010873
11709a3680
123a2774a1
1322791b50
1414487717
15c1b219d
hex839e0f9

138010873 has 16 divisors (see below), whose sum is σ = 185302656. Its totient is φ = 99267840.

The previous prime is 138010861. The next prime is 138010883. The reversal of 138010873 is 378010831.

138010873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138010873 - 25 = 138010841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138010843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67936 + ... + 69937.

It is an arithmetic number, because the mean of its divisors is an integer number (11581416).

Almost surely, 2138010873 is an apocalyptic number.

138010873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138010873 is a deficient number, since it is larger than the sum of its proper divisors (47291783).

138010873 is a wasteful number, since it uses less digits than its factorization.

138010873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137904.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 138010873 is about 11747.8029009683. The cubic root of 138010873 is about 516.7784968245.

The spelling of 138010873 in words is "one hundred thirty-eight million, ten thousand, eight hundred seventy-three".

Divisors: 1 7 11 13 77 91 143 1001 137873 965111 1516603 1792349 10616221 12546443 19715839 138010873