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105112203 = 372715049
BaseRepresentation
bin1100100001111…
…10001010001011
321022210020211120
412100332022023
5203402042303
614232530323
72414303400
oct620761213
9238706746
10105112203
1154373399
122b2509a3
1318a13691
14dd622a7
159364553
hex643e28b

105112203 has 12 divisors (see below), whose sum is σ = 163031400. Its totient is φ = 60064032.

The previous prime is 105112193. The next prime is 105112219. The reversal of 105112203 is 302211501.

It is not a de Polignac number, because 105112203 - 24 = 105112187 is a prime.

It is a super-2 number, since 2×1051122032 = 22097150439026418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357378 + ... + 357671.

It is an arithmetic number, because the mean of its divisors is an integer number (13585950).

Almost surely, 2105112203 is an apocalyptic number.

105112203 is a deficient number, since it is larger than the sum of its proper divisors (57919197).

105112203 is an equidigital number, since it uses as much as digits as its factorization.

105112203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715066 (or 715059 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 105112203 is about 10252.4242499030. The cubic root of 105112203 is about 471.9373824694.

Adding to 105112203 its reverse (302211501), we get a palindrome (407323704).

The spelling of 105112203 in words is "one hundred five million, one hundred twelve thousand, two hundred three".

Divisors: 1 3 7 21 49 147 715049 2145147 5005343 15016029 35037401 105112203