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2138127141 = 34316574629
BaseRepresentation
bin111111101110001…
…0011101100100101
312112000021010001010
41333130103230211
513334330032031
6552055252433
7103661531553
oct17734235445
95460233033
102138127141
119a7a0a627
124b807a119
13280c7a0b7
14163d72bd3
15c7a99246
hex7f713b25

2138127141 has 8 divisors (see below), whose sum is σ = 2917134880. Its totient is φ = 1392268752.

The previous prime is 2138127139. The next prime is 2138127151. The reversal of 2138127141 is 1417218312.

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

It is not a de Polignac number, because 2138127141 - 21 = 2138127139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2138127099 and 2138127108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138127151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8287186 + ... + 8287443.

It is an arithmetic number, because the mean of its divisors is an integer number (364641860).

Almost surely, 22138127141 is an apocalyptic number.

It is an amenable number.

2138127141 is a deficient number, since it is larger than the sum of its proper divisors (779007739).

2138127141 is a wasteful number, since it uses less digits than its factorization.

2138127141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16574675.

The product of its digits is 2688, while the sum is 30.

The square root of 2138127141 is about 46239.8869051385. The cubic root of 2138127141 is about 1288.2827019608.

The spelling of 2138127141 in words is "two billion, one hundred thirty-eight million, one hundred twenty-seven thousand, one hundred forty-one".

Divisors: 1 3 43 129 16574629 49723887 712709047 2138127141