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12227051 = 193120759
BaseRepresentation
bin101110101001…
…000111101011
3212000012100202
4232221013223
511112231201
61114022415
7205633244
oct56510753
925005322
1012227051
1169a1401
124117a0b
1326c1455
1418a3ccb
151117c6b
hexba91eb

12227051 has 8 divisors (see below), whose sum is σ = 13286400. Its totient is φ = 11209320.

The previous prime is 12227041. The next prime is 12227069. The reversal of 12227051 is 15072221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12227051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12227021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9791 + ... + 10968.

It is an arithmetic number, because the mean of its divisors is an integer number (1660800).

Almost surely, 212227051 is an apocalyptic number.

12227051 is a deficient number, since it is larger than the sum of its proper divisors (1059349).

12227051 is a wasteful number, since it uses less digits than its factorization.

12227051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20809.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12227051 is about 3496.7200345467. The cubic root of 12227051 is about 230.3777723682.

Adding to 12227051 its reverse (15072221), we get a palindrome (27299272).

The spelling of 12227051 in words is "twelve million, two hundred twenty-seven thousand, fifty-one".

Divisors: 1 19 31 589 20759 394421 643529 12227051