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211412513 = 1331152291
BaseRepresentation
bin11001001100111…
…10011000100001
3112201210212110002
430212132120201
5413110200023
632551145345
75144656004
oct1446363041
9481725402
10211412513
11a9378394
125a975255
1334a51a80
142011353b
1513860b28
hexc99e621

211412513 has 8 divisors (see below), whose sum is σ = 228411456. Its totient is φ = 194518800.

The previous prime is 211412507. The next prime is 211412543. The reversal of 211412513 is 315214112.

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

It is a cyclic number.

It is not a de Polignac number, because 211412513 - 24 = 211412497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211412503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22103 + ... + 30188.

It is an arithmetic number, because the mean of its divisors is an integer number (28551432).

Almost surely, 2211412513 is an apocalyptic number.

It is an amenable number.

211412513 is a deficient number, since it is larger than the sum of its proper divisors (16998943).

211412513 is a wasteful number, since it uses less digits than its factorization.

211412513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52615.

The product of its digits is 240, while the sum is 20.

The square root of 211412513 is about 14540.0313961147. The cubic root of 211412513 is about 595.7218957236.

Adding to 211412513 its reverse (315214112), we get a palindrome (526626625).

The spelling of 211412513 in words is "two hundred eleven million, four hundred twelve thousand, five hundred thirteen".

Divisors: 1 13 311 4043 52291 679783 16262501 211412513