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12197050 = 2521937347
BaseRepresentation
bin101110100001…
…110010111010
3211221200012121
4232201302322
511110301200
61113231454
7205446625
oct56416272
924850177
1012197050
116980908
12410258a
1326b08b8
141896dbc
15110de1a
hexba1cba

12197050 has 48 divisors (see below), whose sum is σ = 24596640. Its totient is φ = 4484160.

The previous prime is 12197039. The next prime is 12197051. The reversal of 12197050 is 5079121.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12197051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34977 + ... + 35323.

It is an arithmetic number, because the mean of its divisors is an integer number (512430).

Almost surely, 212197050 is an apocalyptic number.

12197050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12197050 is an abundant number, since it is smaller than the sum of its proper divisors (12399590).

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

12197050 is a wasteful number, since it uses less digits than its factorization.

12197050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12197050 is about 3492.4275225121. The cubic root of 12197050 is about 230.1891953042.

The spelling of 12197050 in words is "twelve million, one hundred ninety-seven thousand, fifty".

Divisors: 1 2 5 10 19 25 37 38 50 74 95 185 190 347 370 475 694 703 925 950 1406 1735 1850 3470 3515 6593 7030 8675 12839 13186 17350 17575 25678 32965 35150 64195 65930 128390 164825 243941 320975 329650 487882 641950 1219705 2439410 6098525 12197050