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12150469 = 18616529
BaseRepresentation
bin101110010110…
…011011000101
3211212022022101
4232112123011
511102303334
61112232101
7205164052
oct56263305
924768271
1012150469
116949911
12409b631
132695636
141884029
151100214
hexb966c5

12150469 has 4 divisors (see below), whose sum is σ = 12158860. Its totient is φ = 12142080.

The previous prime is 12150451. The next prime is 12150491. The reversal of 12150469 is 96405121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96405121 = 234191527.

It can be written as a sum of positive squares in 2 ways, for example, as 330625 + 11819844 = 575^2 + 3438^2 .

It is a cyclic number.

It is not a de Polignac number, because 12150469 - 221 = 10053317 is a prime.

It is a super-2 number, since 2×121504692 = 295267793839922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150499) 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 3 ways as a sum of consecutive naturals, for example, 1404 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (3039715).

Almost surely, 212150469 is an apocalyptic number.

12150469 is the 2013-rd hex number.

It is an amenable number.

12150469 is a deficient number, since it is larger than the sum of its proper divisors (8391).

12150469 is an equidigital number, since it uses as much as digits as its factorization.

12150469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 12150469 is about 3485.7522860926. The cubic root of 12150469 is about 229.8957876975.

The spelling of 12150469 in words is "twelve million, one hundred fifty thousand, four hundred sixty-nine".

Divisors: 1 1861 6529 12150469