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12164401 = 172353587
BaseRepresentation
bin101110011001…
…110100110001
3211220000102101
4232121310301
511103230101
61112420401
7205252504
oct56316461
924800371
1012164401
116959327
1240a7701
13269ba92
14188913b
151104401
hexb99d31

12164401 has 16 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 10726144.

The previous prime is 12164387. The next prime is 12164423. The reversal of 12164401 is 10446121.

It is a cyclic number.

It is not a de Polignac number, because 12164401 - 221 = 10067249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12164461) 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 15 ways as a sum of consecutive naturals, for example, 20430 + ... + 21016.

It is an arithmetic number, because the mean of its divisors is an integer number (857304).

Almost surely, 212164401 is an apocalyptic number.

It is an amenable number.

12164401 is a deficient number, since it is larger than the sum of its proper divisors (1552463).

12164401 is a wasteful number, since it uses less digits than its factorization.

12164401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12164401 is about 3487.7501343990. The cubic root of 12164401 is about 229.9836220222.

The spelling of 12164401 in words is "twelve million, one hundred sixty-four thousand, four hundred one".

Divisors: 1 17 23 53 391 587 901 1219 9979 13501 20723 31111 229517 528887 715553 12164401