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220232005 = 576292343
BaseRepresentation
bin11010010000001…
…11100101000101
3120100101221111221
431020013211011
5422334411010
633504200341
75312640550
oct1510074505
9510357457
10220232005
11103351624
12619090b1
133681c1c6
142136b697
1514503dda
hexd207945

220232005 has 8 divisors (see below), whose sum is σ = 302032512. Its totient is φ = 151016208.

The previous prime is 220231997. The next prime is 220232009. The reversal of 220232005 is 500232022.

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

It is not a de Polignac number, because 220232005 - 23 = 220231997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220232005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220232009) 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, 3146137 + ... + 3146206.

It is an arithmetic number, because the mean of its divisors is an integer number (37754064).

Almost surely, 2220232005 is an apocalyptic number.

It is an amenable number.

220232005 is a deficient number, since it is larger than the sum of its proper divisors (81800507).

220232005 is an equidigital number, since it uses as much as digits as its factorization.

220232005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6292355.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 220232005 is about 14840.2158003177. The cubic root of 220232005 is about 603.8932067451.

Adding to 220232005 its reverse (500232022), we get a palindrome (720464027).

The spelling of 220232005 in words is "two hundred twenty million, two hundred thirty-two thousand, five".

Divisors: 1 5 7 35 6292343 31461715 44046401 220232005