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138060101 = 255753993
BaseRepresentation
bin10000011101010…
…10000101000101
3100121210011212002
420032222011011
5240320410401
621411035045
73264330404
oct1016520505
9317704762
10138060101
1170a27663
123a29ba85
13227ab38a
141449b63b
15c1c1a6b
hex83aa145

138060101 has 4 divisors (see below), whose sum is σ = 138116652. Its totient is φ = 138003552.

The previous prime is 138060073. The next prime is 138060113. The reversal of 138060101 is 101060831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108139201 + 29920900 = 10399^2 + 5470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-138060101 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 (138060121) 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, 24440 + ... + 29553.

It is an arithmetic number, because the mean of its divisors is an integer number (34529163).

Almost surely, 2138060101 is an apocalyptic number.

It is an amenable number.

138060101 is a deficient number, since it is larger than the sum of its proper divisors (56551).

138060101 is an equidigital number, since it uses as much as digits as its factorization.

138060101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56550.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 138060101 is about 11749.8979144502. The cubic root of 138060101 is about 516.8399338864.

The spelling of 138060101 in words is "one hundred thirty-eight million, sixty thousand, one hundred one".

Divisors: 1 2557 53993 138060101