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12210033 = 3112316087
BaseRepresentation
bin101110100100…
…111101110001
3211222100000110
4232210331301
511111210113
61113411533
7205532523
oct56447561
924870013
1012210033
11698a640
124109ba9
1326b6794
14189ba13
151112bc3
hexba4f71

12210033 has 16 divisors (see below), whose sum is σ = 18533376. Its totient is φ = 7077840.

The previous prime is 12210019. The next prime is 12210041. The reversal of 12210033 is 33001221.

It is a happy number.

It is not a de Polignac number, because 12210033 - 26 = 12209969 is a prime.

It is a super-2 number, since 2×122100332 = 298169811722178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12215033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7285 + ... + 8802.

It is an arithmetic number, because the mean of its divisors is an integer number (1158336).

Almost surely, 212210033 is an apocalyptic number.

It is an amenable number.

12210033 is a deficient number, since it is larger than the sum of its proper divisors (6323343).

12210033 is a wasteful number, since it uses less digits than its factorization.

12210033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16124.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12210033 is about 3494.2857639294. The cubic root of 12210033 is about 230.2708403625.

Adding to 12210033 its reverse (33001221), we get a palindrome (45211254).

The spelling of 12210033 in words is "twelve million, two hundred ten thousand, thirty-three".

Divisors: 1 3 11 23 33 69 253 759 16087 48261 176957 370001 530871 1110003 4070011 12210033