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103310221 = 7891391193
BaseRepresentation
bin1100010100001…
…10001110001101
321012101200222111
412022012032031
5202421411341
614130144021
72363056660
oct612061615
9235350874
10103310221
1153352553
122a722011
1318532411
14da136d7
15910a681
hex628638d

103310221 has 16 divisors (see below), whose sum is σ = 120355200. Its totient is φ = 86853888.

The previous prime is 103310191. The next prime is 103310261. The reversal of 103310221 is 122013301.

It is a cyclic number.

It is not a de Polignac number, because 103310221 - 25 = 103310189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103310261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86001 + ... + 87193.

It is an arithmetic number, because the mean of its divisors is an integer number (7522200).

Almost surely, 2103310221 is an apocalyptic number.

It is an amenable number.

103310221 is a deficient number, since it is larger than the sum of its proper divisors (17044979).

103310221 is a wasteful number, since it uses less digits than its factorization.

103310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103310221 is about 10164.1635661770. The cubic root of 103310221 is about 469.2249501666.

Adding to 103310221 its reverse (122013301), we get a palindrome (225323522).

The spelling of 103310221 in words is "one hundred three million, three hundred ten thousand, two hundred twenty-one".

Divisors: 1 7 89 139 623 973 1193 8351 12371 86597 106177 165827 743239 1160789 14758603 103310221