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221033053 = 1636772003
BaseRepresentation
bin11010010110010…
…11001001011101
3120101220122100101
431023023021131
5423041024203
633533301101
75322515143
oct1513131135
9511818311
10221033053
1110384944a
1262034791
1336a3c9b7
14214d9593
151461141d
hexd2cb25d

221033053 has 8 divisors (see below), whose sum is σ = 222828768. Its totient is φ = 219243024.

The previous prime is 221033051. The next prime is 221033083. The reversal of 221033053 is 350330122.

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 221033053 - 21 = 221033051 is a prime.

It is a super-2 number, since 2×2210330532 = 97711221037001618, which contains 22 as substring.

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 221033053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221033051) 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, 109350 + ... + 111352.

It is an arithmetic number, because the mean of its divisors is an integer number (27853596).

Almost surely, 2221033053 is an apocalyptic number.

It is an amenable number.

221033053 is a deficient number, since it is larger than the sum of its proper divisors (1795715).

221033053 is a wasteful number, since it uses less digits than its factorization.

221033053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 221033053 is about 14867.1803984481. The cubic root of 221033053 is about 604.6244993617.

Adding to 221033053 its reverse (350330122), we get a palindrome (571363175).

The spelling of 221033053 in words is "two hundred twenty-one million, thirty-three thousand, fifty-three".

Divisors: 1 163 677 2003 110351 326489 1356031 221033053