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12020118 = 2311182123
BaseRepresentation
bin101101110110…
…100110010110
3211121200111120
4231312212112
511034120433
61105344410
7204112035
oct55664626
924550446
1012020118
11686a990
124038106
13264b1c6
14184c71c
1510c67b3
hexb76996

12020118 has 16 divisors (see below), whose sum is σ = 26225856. Its totient is φ = 3642440.

The previous prime is 12020083. The next prime is 12020119. The reversal of 12020118 is 81102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020097 and 12020106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020119) 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, 90996 + ... + 91127.

It is an arithmetic number, because the mean of its divisors is an integer number (1639116).

Almost surely, 212020118 is an apocalyptic number.

12020118 is an abundant number, since it is smaller than the sum of its proper divisors (14205738).

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

12020118 is a wasteful number, since it uses less digits than its factorization.

12020118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182139.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 12020118 is about 3467.0041822876. The cubic root of 12020118 is about 229.0707179747.

Adding to 12020118 its reverse (81102021), we get a palindrome (93122139).

The spelling of 12020118 in words is "twelve million, twenty thousand, one hundred eighteen".

Divisors: 1 2 3 6 11 22 33 66 182123 364246 546369 1092738 2003353 4006706 6010059 12020118