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12210513 = 371733361
BaseRepresentation
bin101110100101…
…000101010001
3211222100200020
4232211011101
511111214023
61113414053
7205534110
oct56450521
924870606
1012210513
11698aa37
12410a329
1326b6a73
14189bc77
151112de3
hexba5151

12210513 has 16 divisors (see below), whose sum is σ = 18719616. Its totient is φ = 6935040.

The previous prime is 12210503. The next prime is 12210563. The reversal of 12210513 is 31501221.

It is not a de Polignac number, because 12210513 - 26 = 12210449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210492 and 12210501.

It is not an unprimeable number, because it can be changed into a prime (12210503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (1169976).

Almost surely, 212210513 is an apocalyptic number.

It is an amenable number.

12210513 is a deficient number, since it is larger than the sum of its proper divisors (6509103).

12210513 is a wasteful number, since it uses less digits than its factorization.

12210513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544.

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

The square root of 12210513 is about 3494.3544468185. The cubic root of 12210513 is about 230.2738577869.

Adding to 12210513 its reverse (31501221), we get a palindrome (43711734).

The spelling of 12210513 in words is "twelve million, two hundred ten thousand, five hundred thirteen".

Divisors: 1 3 7 21 173 519 1211 3361 3633 10083 23527 70581 581453 1744359 4070171 12210513