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220205953 = 11191053617
BaseRepresentation
bin11010010000000…
…01001110000001
3120100100121210001
431020001032001
5422333042303
633503440001
75312501602
oct1510011601
9510317701
10220205953
11103333aa0
12618b6001
13368103a6
1421361da9
15144eb31d
hexd201381

220205953 has 8 divisors (see below), whose sum is σ = 252868320. Its totient is φ = 189650880.

The previous prime is 220205941. The next prime is 220205971. The reversal of 220205953 is 359502022.

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 220205953 - 29 = 220205441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220205983) 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, 526600 + ... + 527017.

It is an arithmetic number, because the mean of its divisors is an integer number (31608540).

Almost surely, 2220205953 is an apocalyptic number.

It is an amenable number.

220205953 is a deficient number, since it is larger than the sum of its proper divisors (32662367).

220205953 is a wasteful number, since it uses less digits than its factorization.

220205953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053647.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 220205953 is about 14839.3380243190. The cubic root of 220205953 is about 603.8693936058.

Adding to 220205953 its reverse (359502022), we get a palindrome (579707975).

The spelling of 220205953 in words is "two hundred twenty million, two hundred five thousand, nine hundred fifty-three".

Divisors: 1 11 19 209 1053617 11589787 20018723 220205953