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12197208 = 2334353223
BaseRepresentation
bin101110100001…
…110101011000
3211221200102110
4232201311120
511110302313
61113232320
7205450242
oct56416530
924850373
1012197208
116980a41
1241026a0
1326b09aa
141897092
15110dec3
hexba1d58

12197208 has 64 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 3878784.

The previous prime is 12197191. The next prime is 12197219. The reversal of 12197208 is 80279121.

12197208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54585 + ... + 54807.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 212197208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12197208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15966720).

12197208 is an abundant number, since it is smaller than the sum of its proper divisors (19736232).

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

12197208 is a wasteful number, since it uses less digits than its factorization.

12197208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 12197208 is about 3492.4501428081. The cubic root of 12197208 is about 230.1901892531.

The spelling of 12197208 in words is "twelve million, one hundred ninety-seven thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 24 43 53 86 106 129 159 172 212 223 258 318 344 424 446 516 636 669 892 1032 1272 1338 1784 2279 2676 4558 5352 6837 9116 9589 11819 13674 18232 19178 23638 27348 28767 35457 38356 47276 54696 57534 70914 76712 94552 115068 141828 230136 283656 508217 1016434 1524651 2032868 3049302 4065736 6098604 12197208