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12164745 = 353132591
BaseRepresentation
bin101110011001…
…111010001001
3211220000220010
4232121322021
511103232440
61112422133
7205253505
oct56317211
924800803
1012164745
11695960a
1240a7949
13269bc98
141889305
151104580
hexb99e89

12164745 has 16 divisors (see below), whose sum is σ = 19533312. Its totient is φ = 6464640.

The previous prime is 12164699. The next prime is 12164759. The reversal of 12164745 is 54746121.

It is not a de Polignac number, because 12164745 - 28 = 12164489 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3400 + ... + 5990.

It is an arithmetic number, because the mean of its divisors is an integer number (1220832).

Almost surely, 212164745 is an apocalyptic number.

12164745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12164745 is a deficient number, since it is larger than the sum of its proper divisors (7368567).

12164745 is a wasteful number, since it uses less digits than its factorization.

12164745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912.

The product of its digits is 6720, while the sum is 30.

The square root of 12164745 is about 3487.7994495097. The cubic root of 12164745 is about 229.9857899223.

The spelling of 12164745 in words is "twelve million, one hundred sixty-four thousand, seven hundred forty-five".

Divisors: 1 3 5 15 313 939 1565 2591 4695 7773 12955 38865 810983 2432949 4054915 12164745