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5123132131 = 13394087087
BaseRepresentation
bin1001100010101110…
…01100101011100011
3111020001002002002111
410301113030223203
540443010212011
62204210300151
7240645622165
oct46127145343
914201062074
105123132131
112199968aa7
12bab887657
13638511340
14368594935
151eeb7a121
hex1315ccae3

5123132131 has 4 divisors (see below), whose sum is σ = 5517219232. Its totient is φ = 4729045032.

The previous prime is 5123132129. The next prime is 5123132177. The reversal of 5123132131 is 1312313215.

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

It is a cyclic number.

It is not a de Polignac number, because 5123132131 - 21 = 5123132129 is a prime.

It is a super-2 number, since 2×51231321312 = 52492965663369202322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5123132731) 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 3 ways as a sum of consecutive naturals, for example, 197043531 + ... + 197043556.

It is an arithmetic number, because the mean of its divisors is an integer number (1379304808).

Almost surely, 25123132131 is an apocalyptic number.

5123132131 is a deficient number, since it is larger than the sum of its proper divisors (394087101).

5123132131 is a wasteful number, since it uses less digits than its factorization.

5123132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394087100.

The product of its digits is 540, while the sum is 22.

The square root of 5123132131 is about 71576.0583645118. The cubic root of 5123132131 is about 1723.8991372409.

Adding to 5123132131 its reverse (1312313215), we get a palindrome (6435445346).

The spelling of 5123132131 in words is "five billion, one hundred twenty-three million, one hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 13 394087087 5123132131