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12443212010 = 251498351149
BaseRepresentation
bin10111001011010110…
…00101100011101010
31012010012002122221002
423211223011203222
5200440430241020
65414421115002
7620232362015
oct134553054352
935105078832
1012443212010
115305961399
1224b3258a62
131233c25958
1486083037c
154cc61c975
hex2e5ac58ea

12443212010 has 16 divisors (see below), whose sum is σ = 22548105000. Its totient is φ = 4943879616.

The previous prime is 12443212003. The next prime is 12443212021. The reversal of 12443212010 is 1021234421.

It can be written as a sum of positive squares in 4 ways, for example, as 4169672329 + 8273539681 = 64573^2 + 90959^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4174085 + ... + 4177064.

Almost surely, 212443212010 is an apocalyptic number.

12443212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12443212010 is a deficient number, since it is larger than the sum of its proper divisors (10104892990).

12443212010 is a wasteful number, since it uses less digits than its factorization.

12443212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351305.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12443212010 its reverse (1021234421), we get a palindrome (13464446431).

The spelling of 12443212010 in words is "twelve billion, four hundred forty-three million, two hundred twelve thousand, ten".

Divisors: 1 2 5 10 149 298 745 1490 8351149 16702298 41755745 83511490 1244321201 2488642402 6221606005 12443212010