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1164440213 = 1970187427
BaseRepresentation
bin100010101100111…
…1111001010010101
310000011002200200022
41011121333022111
54341044041323
6311313554525
740566402266
oct10531771225
93004080608
101164440213
11548329192
12285b75a45
131573239a1
14b091496d
156c3644c8
hex4567f295

1164440213 has 8 divisors (see below), whose sum is σ = 1227489120. Its totient is φ = 1101567600.

The previous prime is 1164440201. The next prime is 1164440231. The reversal of 1164440213 is 3120444611.

It is a happy number.

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 1164440213 - 216 = 1164374677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164440273) 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, 30395 + ... + 57032.

It is an arithmetic number, because the mean of its divisors is an integer number (153436140).

Almost surely, 21164440213 is an apocalyptic number.

It is an amenable number.

1164440213 is a deficient number, since it is larger than the sum of its proper divisors (63048907).

1164440213 is an equidigital number, since it uses as much as digits as its factorization.

1164440213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88147.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1164440213 is about 34123.8950443820. The cubic root of 1164440213 is about 1052.0565025891.

Adding to 1164440213 its reverse (3120444611), we get a palindrome (4284884824).

The spelling of 1164440213 in words is "one billion, one hundred sixty-four million, four hundred forty thousand, two hundred thirteen".

Divisors: 1 19 701 13319 87427 1661113 61286327 1164440213