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213312115 = 5121335171
BaseRepresentation
bin11001011011011…
…10001001110011
3112212101101012201
430231232021303
5414101441430
633100004031
75200060132
oct1455561163
9485341181
10213312115
11aa455605
125b530617
13352685b3
1420489919
1513ad88ca
hexcb6e273

213312115 has 8 divisors (see below), whose sum is σ = 256192848. Its totient is φ = 170504160.

The previous prime is 213312103. The next prime is 213312119. The reversal of 213312115 is 511213312.

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

It is not a de Polignac number, because 213312115 - 25 = 213312083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213312092 and 213312101.

It is not an unprimeable number, because it can be changed into a prime (213312119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11521 + ... + 23650.

It is an arithmetic number, because the mean of its divisors is an integer number (32024106).

Almost surely, 2213312115 is an apocalyptic number.

213312115 is a deficient number, since it is larger than the sum of its proper divisors (42880733).

213312115 is a wasteful number, since it uses less digits than its factorization.

213312115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36389.

The product of its digits is 180, while the sum is 19.

The square root of 213312115 is about 14605.2084887550. The cubic root of 213312115 is about 597.5008222300.

Adding to 213312115 its reverse (511213312), we get a palindrome (724525427).

The spelling of 213312115 in words is "two hundred thirteen million, three hundred twelve thousand, one hundred fifteen".

Divisors: 1 5 1213 6065 35171 175855 42662423 213312115