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12620066 = 2191132939
BaseRepresentation
bin110000001001…
…000100100010
3212202011110212
4300021010202
511212320231
61130254122
7212161124
oct60110442
925664425
1012620066
11713a708
124287342
1327cb2c4
141967214
15119442b
hexc09122

12620066 has 16 divisors (see below), whose sum is σ = 20109600. Its totient is φ = 5923008.

The previous prime is 12620063. The next prime is 12620119. The reversal of 12620066 is 66002621.

It is not an unprimeable number, because it can be changed into a prime (12620063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825 + ... + 5763.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 212620066 is an apocalyptic number.

12620066 is a deficient number, since it is larger than the sum of its proper divisors (7489534).

12620066 is a wasteful number, since it uses less digits than its factorization.

12620066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12620066 is about 3552.4732229814. The cubic root of 12620066 is about 232.8201378603.

Adding to 12620066 its reverse (66002621), we get a palindrome (78622687).

The spelling of 12620066 in words is "twelve million, six hundred twenty thousand, sixty-six".

Divisors: 1 2 19 38 113 226 2147 2939 4294 5878 55841 111682 332107 664214 6310033 12620066