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12145006 = 243141221
BaseRepresentation
bin101110010101…
…000101101110
3211212000211001
4232111011232
511102120011
61112150514
7205142116
oct56250556
924760731
1012145006
1169457a5
12409843a
132692cc3
141882046
1510ed7c1
hexb9516e

12145006 has 8 divisors (see below), whose sum is σ = 18641304. Its totient is φ = 5931240.

The previous prime is 12144983. The next prime is 12145013. The reversal of 12145006 is 60054121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 70525 + ... + 70696.

It is an arithmetic number, because the mean of its divisors is an integer number (2330163).

Almost surely, 212145006 is an apocalyptic number.

12145006 is a deficient number, since it is larger than the sum of its proper divisors (6496298).

12145006 is a wasteful number, since it uses less digits than its factorization.

12145006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141266.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12145006 is about 3484.9685794853. The cubic root of 12145006 is about 229.8613278765.

Adding to 12145006 its reverse (60054121), we get a palindrome (72199127).

The spelling of 12145006 in words is "twelve million, one hundred forty-five thousand, six".

Divisors: 1 2 43 86 141221 282442 6072503 12145006