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221241103 = 1577731823
BaseRepresentation
bin11010010111111…
…01111100001111
3120102022012201221
431023331330033
5423114203403
633541544211
75324342536
oct1513757417
9512265657
10221241103
11103980796
1262115067
1336ab35c5
142155131d
1514652dbd
hexd2fdf0f

221241103 has 8 divisors (see below), whose sum is σ = 223060608. Its totient is φ = 219427104.

The previous prime is 221241089. The next prime is 221241113. The reversal of 221241103 is 301142122.

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 221241103 - 213 = 221232911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221241113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120450 + ... + 122272.

It is an arithmetic number, because the mean of its divisors is an integer number (27882576).

Almost surely, 2221241103 is an apocalyptic number.

221241103 is a deficient number, since it is larger than the sum of its proper divisors (1819505).

221241103 is a wasteful number, since it uses less digits than its factorization.

221241103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 221241103 is about 14874.1757082536. The cubic root of 221241103 is about 604.8141432155.

Adding to 221241103 its reverse (301142122), we get a palindrome (522383225).

The spelling of 221241103 in words is "two hundred twenty-one million, two hundred forty-one thousand, one hundred three".

Divisors: 1 157 773 1823 121361 286211 1409179 221241103