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213310131 = 3193742283
BaseRepresentation
bin11001011011011…
…01101010110011
3112212101021111020
430231231222303
5414101411011
633055550523
75200051266
oct1455555263
9485337436
10213310131
11aa454071
125b52b443
1335267718
1420488cdd
1513ad8006
hexcb6dab3

213310131 has 8 divisors (see below), whose sum is σ = 299382720. Its totient is φ = 134722152.

The previous prime is 213310117. The next prime is 213310147. The reversal of 213310131 is 131013312.

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

It is not a de Polignac number, because 213310131 - 223 = 204921523 is a prime.

It is a super-2 number, since 2×2133101312 = 91002423974474322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213310131.

It is not an unprimeable number, because it can be changed into a prime (213310151) 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 7 ways as a sum of consecutive naturals, for example, 1871085 + ... + 1871198.

It is an arithmetic number, because the mean of its divisors is an integer number (37422840).

Almost surely, 2213310131 is an apocalyptic number.

213310131 is a deficient number, since it is larger than the sum of its proper divisors (86072589).

213310131 is a wasteful number, since it uses less digits than its factorization.

213310131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742305.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 213310131 is about 14605.1405676221. The cubic root of 213310131 is about 597.4989697875.

Adding to 213310131 its reverse (131013312), we get a palindrome (344323443).

The spelling of 213310131 in words is "two hundred thirteen million, three hundred ten thousand, one hundred thirty-one".

Divisors: 1 3 19 57 3742283 11226849 71103377 213310131