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212160313 = 764927737
BaseRepresentation
bin11001010010101…
…00111100111001
3112210012212020101
430221110330321
5413303112223
633015155401
75154222121
oct1451247471
9483185211
10212160313
11a9839202
125b075b61
1334c54261
1420269c81
151395c4ad
hexca54f39

212160313 has 4 divisors (see below), whose sum is σ = 212195700. Its totient is φ = 212124928.

The previous prime is 212160271. The next prime is 212160337. The reversal of 212160313 is 313061212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91336249 + 120824064 = 9557^2 + 10992^2 .

It is a cyclic number.

It is not a de Polignac number, because 212160313 - 217 = 212029241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212160343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6220 + ... + 21517.

It is an arithmetic number, because the mean of its divisors is an integer number (53048925).

Almost surely, 2212160313 is an apocalyptic number.

It is an amenable number.

212160313 is a deficient number, since it is larger than the sum of its proper divisors (35387).

212160313 is an equidigital number, since it uses as much as digits as its factorization.

212160313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35386.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 212160313 is about 14565.7239092329. The cubic root of 212160313 is about 596.4234571895.

The spelling of 212160313 in words is "two hundred twelve million, one hundred sixty thousand, three hundred thirteen".

Divisors: 1 7649 27737 212160313