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12213102 = 2311211877
BaseRepresentation
bin101110100101…
…101101101110
3211222111020010
4232211231232
511111304402
61113434050
7205544466
oct56455556
924874203
1012213102
116991980
12410b926
1326b7cb5
14189cba6
151113a6c
hexba5b6e

12213102 has 32 divisors (see below), whose sum is σ = 26803584. Its totient is φ = 3679200.

The previous prime is 12213079. The next prime is 12213109. The reversal of 12213102 is 20131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213109) 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, 13488 + ... + 14364.

It is an arithmetic number, because the mean of its divisors is an integer number (837612).

Almost surely, 212213102 is an apocalyptic number.

12213102 is an abundant number, since it is smaller than the sum of its proper divisors (14590482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12213102 is a wasteful number, since it uses less digits than its factorization.

12213102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12213102 is about 3494.7248818755. The cubic root of 12213102 is about 230.2901316564.

Adding to 12213102 its reverse (20131221), we get a palindrome (32344323).

The spelling of 12213102 in words is "twelve million, two hundred thirteen thousand, one hundred two".

Divisors: 1 2 3 6 11 22 33 66 211 422 633 877 1266 1754 2321 2631 4642 5262 6963 9647 13926 19294 28941 57882 185047 370094 555141 1110282 2035517 4071034 6106551 12213102