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12210103 = 192149227
BaseRepresentation
bin101110100100…
…111110110111
3211222100010001
4232210332313
511111210403
61113412131
7205532653
oct56447667
924870101
1012210103
11698a6a4
12410a047
1326b6819
14189ba63
151112c1d
hexba4fb7

12210103 has 12 divisors (see below), whose sum is σ = 13030200. Its totient is φ = 11439216.

The previous prime is 12210101. The next prime is 12210113. The reversal of 12210103 is 30101221.

It is not a de Polignac number, because 12210103 - 21 = 12210101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12210103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53676 + ... + 53902.

It is an arithmetic number, because the mean of its divisors is an integer number (1085850).

Almost surely, 212210103 is an apocalyptic number.

12210103 is a deficient number, since it is larger than the sum of its proper divisors (820097).

12210103 is a wasteful number, since it uses less digits than its factorization.

12210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12210103 is about 3494.2957802682. The cubic root of 12210103 is about 230.2712804085.

Adding to 12210103 its reverse (30101221), we get a palindrome (42311324).

The spelling of 12210103 in words is "twelve million, two hundred ten thousand, one hundred three".

Divisors: 1 19 149 227 361 2831 4313 33823 53789 81947 642637 12210103