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103441221 = 32133172789
BaseRepresentation
bin1100010101001…
…10001101000101
321012122100200100
412022212031011
5202440104341
614133034313
72364143622
oct612461505
9235570610
10103441221
1153431a14
122a785999
1318579c30
14da49349
1591343b6
hex62a6345

103441221 has 24 divisors (see below), whose sum is σ = 161474040. Its totient is φ = 63432576.

The previous prime is 103441211. The next prime is 103441259. The reversal of 103441221 is 122144301.

103441221 is a `hidden beast` number, since 1 + 0 + 3 + 441 + 221 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12321 + 103428900 = 111^2 + 10170^2 .

It is a de Polignac number, because none of the positive numbers 2k-103441221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103441194 and 103441203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103441201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35695 + ... + 38483.

It is an arithmetic number, because the mean of its divisors is an integer number (6728085).

Almost surely, 2103441221 is an apocalyptic number.

It is an amenable number.

103441221 is a deficient number, since it is larger than the sum of its proper divisors (58032819).

103441221 is a wasteful number, since it uses less digits than its factorization.

103441221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125 (or 3122 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 103441221 is about 10170.6057341734. The cubic root of 103441221 is about 469.4231961387.

Adding to 103441221 its reverse (122144301), we get a palindrome (225585522).

The spelling of 103441221 in words is "one hundred three million, four hundred forty-one thousand, two hundred twenty-one".

Divisors: 1 3 9 13 39 117 317 951 2789 2853 4121 8367 12363 25101 36257 37089 108771 326313 884113 2652339 7957017 11493469 34480407 103441221