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12220107 = 3232931197
BaseRepresentation
bin101110100111…
…011011001011
3211222211211120
4232213123023
511112020412
61113530323
7205604064
oct56473313
924884746
1012220107
116997169
1241139a3
1326bb243
1418a156b
151115b8c
hexba76cb

12220107 has 32 divisors (see below), whose sum is σ = 18247680. Its totient is φ = 7244160.

The previous prime is 12220081. The next prime is 12220111. The reversal of 12220107 is 70102221.

It is not a de Polignac number, because 12220107 - 215 = 12187339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61933 + ... + 62129.

It is an arithmetic number, because the mean of its divisors is an integer number (570240).

Almost surely, 212220107 is an apocalyptic number.

12220107 is a deficient number, since it is larger than the sum of its proper divisors (6027573).

12220107 is a wasteful number, since it uses less digits than its factorization.

12220107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 12220107 is about 3495.7269630221. The cubic root of 12220107 is about 230.3341519785.

Adding to 12220107 its reverse (70102221), we get a palindrome (82322328).

The spelling of 12220107 in words is "twelve million, two hundred twenty thousand, one hundred seven".

Divisors: 1 3 23 29 31 69 87 93 197 591 667 713 899 2001 2139 2697 4531 5713 6107 13593 17139 18321 20677 62031 131399 140461 177103 394197 421383 531309 4073369 12220107