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220019369 = 317097399
BaseRepresentation
bin11010001110100…
…11101010101001
3120100000010211112
431013103222221
5422311104434
633455440105
75311063613
oct1507235251
9510003745
10220019369
11103216899
1261826035
133677649b
1421313db3
15144b0dce
hexd1d3aa9

220019369 has 4 divisors (see below), whose sum is σ = 227116800. Its totient is φ = 212921940.

The previous prime is 220019339. The next prime is 220019381. The reversal of 220019369 is 963910022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220019369 - 28 = 220019113 is a prime.

It is a super-2 number, since 2×2200193692 = 96817045470316322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220019339) 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, 3548669 + ... + 3548730.

It is an arithmetic number, because the mean of its divisors is an integer number (56779200).

Almost surely, 2220019369 is an apocalyptic number.

It is an amenable number.

220019369 is a deficient number, since it is larger than the sum of its proper divisors (7097431).

220019369 is an equidigital number, since it uses as much as digits as its factorization.

220019369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097430.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 220019369 is about 14833.0498886776. The cubic root of 220019369 is about 603.6987893701.

The spelling of 220019369 in words is "two hundred twenty million, nineteen thousand, three hundred sixty-nine".

Divisors: 1 31 7097399 220019369