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12208270 = 258211487
BaseRepresentation
bin101110100100…
…100010001110
3211222020121011
4232210202032
511111131040
61113355434
7205524424
oct56444216
924866534
1012208270
116989288
124108b7a
1326b5a39
14189b114
1511123ea
hexba488e

12208270 has 16 divisors (see below), whose sum is σ = 22016448. Its totient is φ = 4874080.

The previous prime is 12208253. The next prime is 12208277. The reversal of 12208270 is 7280221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7467 + ... + 8953.

It is an arithmetic number, because the mean of its divisors is an integer number (1376028).

Almost surely, 212208270 is an apocalyptic number.

12208270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12208270 is a deficient number, since it is larger than the sum of its proper divisors (9808178).

12208270 is a wasteful number, since it uses less digits than its factorization.

12208270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12208270 is about 3494.0334858155. The cubic root of 12208270 is about 230.2597569354.

Adding to 12208270 its reverse (7280221), we get a palindrome (19488491).

The spelling of 12208270 in words is "twelve million, two hundred eight thousand, two hundred seventy".

Divisors: 1 2 5 10 821 1487 1642 2974 4105 7435 8210 14870 1220827 2441654 6104135 12208270