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12199330 = 25111319449
BaseRepresentation
bin101110100010…
…010110100010
3211221210100001
4232202112202
511110334310
61113250214
7205456363
oct56422642
924853301
1012199330
1169825a0
12410396a
1326b1950
141897b6a
15110e93a
hexba25a2

12199330 has 64 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 3870720.

The previous prime is 12199321. The next prime is 12199331. The reversal of 12199330 is 3399121.

12199330 is a nontrivial binomial coefficient, being equal to C(4940, 2).

It is not an unprimeable number, because it can be changed into a prime (12199331) 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 31 ways as a sum of consecutive naturals, for example, 26946 + ... + 27394.

It is an arithmetic number, because the mean of its divisors is an integer number (425250).

Almost surely, 212199330 is an apocalyptic number.

12199330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12199330 is the 4939-th triangular number and also the 2470-th hexagonal number.

12199330 is the 1647-th centered nonagonal number.

12199330 is an abundant number, since it is smaller than the sum of its proper divisors (15016670).

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

12199330 is a wasteful number, since it uses less digits than its factorization.

12199330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 12199330 is about 3492.7539277768. The cubic root of 12199330 is about 230.2035375335.

The spelling of 12199330 in words is "twelve million, one hundred ninety-nine thousand, three hundred thirty".

Divisors: 1 2 5 10 11 13 19 22 26 38 55 65 95 110 130 143 190 209 247 286 418 449 494 715 898 1045 1235 1430 2090 2245 2470 2717 4490 4939 5434 5837 8531 9878 11674 13585 17062 24695 27170 29185 42655 49390 58370 64207 85310 93841 110903 128414 187682 221806 321035 469205 554515 642070 938410 1109030 1219933 2439866 6099665 12199330