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12190330 = 258913697
BaseRepresentation
bin101110100000…
…001001111010
3211221022222201
4232200021322
511110042310
61113140414
7205421215
oct56401172
924838881
1012190330
116976859
1240ba70a
1326aa819
14189477c
15110be3a
hexba027a

12190330 has 16 divisors (see below), whose sum is σ = 22190760. Its totient is φ = 4820992.

The previous prime is 12190307. The next prime is 12190331. The reversal of 12190330 is 3309121.

It can be written as a sum of positive squares in 4 ways, for example, as 4198401 + 7991929 = 2049^2 + 2827^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12190298 and 12190307.

It is not an unprimeable number, because it can be changed into a prime (12190331) 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, 5959 + ... + 7738.

Almost surely, 212190330 is an apocalyptic number.

12190330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12190330 is a deficient number, since it is larger than the sum of its proper divisors (10000430).

12190330 is a wasteful number, since it uses less digits than its factorization.

12190330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13793.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 12190330 is about 3491.4653084343. The cubic root of 12190330 is about 230.1469130702.

Adding to 12190330 its reverse (3309121), we get a palindrome (15499451).

The spelling of 12190330 in words is "twelve million, one hundred ninety thousand, three hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 13697 27394 68485 136970 1219033 2438066 6095165 12190330