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12229061 = 135317749
BaseRepresentation
bin101110101001…
…100111000101
3212000022010012
4232221213011
511112312221
61114040005
7205642145
oct56514705
925008105
1012229061
1169a2969
124119005
1326c2340
1418a4925
15111865b
hexba99c5

12229061 has 8 divisors (see below), whose sum is σ = 13419000. Its totient is φ = 11074752.

The previous prime is 12229051. The next prime is 12229067. The reversal of 12229061 is 16092221.

It can be written as a sum of positive squares in 4 ways, for example, as 21025 + 12208036 = 145^2 + 3494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12229061 - 214 = 12212677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229067) 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 7 ways as a sum of consecutive naturals, for example, 8186 + ... + 9563.

It is an arithmetic number, because the mean of its divisors is an integer number (1677375).

Almost surely, 212229061 is an apocalyptic number.

It is an amenable number.

12229061 is a deficient number, since it is larger than the sum of its proper divisors (1189939).

12229061 is a wasteful number, since it uses less digits than its factorization.

12229061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17815.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12229061 is about 3497.0074349363. The cubic root of 12229061 is about 230.3903955797.

The spelling of 12229061 in words is "twelve million, two hundred twenty-nine thousand, sixty-one".

Divisors: 1 13 53 689 17749 230737 940697 12229061