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12444432104 = 2313119658001
BaseRepresentation
bin10111001011011111…
…01111011011101000
31012010021101122120202
423211233233123220
5200441233311404
65414503211332
7620245633106
oct134557573350
935107348522
1012444432104
115306615035
1224b3746b48
1312342620c0
14860a6ac76
154cc7ae21e
hex2e5bef6e8

12444432104 has 16 divisors (see below), whose sum is σ = 25128180420. Its totient is φ = 5743584000.

The previous prime is 12444432073. The next prime is 12444432137. The reversal of 12444432104 is 40123444421.

It can be written as a sum of positive squares in 2 ways, for example, as 12321444004 + 122988100 = 111002^2 + 11090^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59828897 + ... + 59829104.

Almost surely, 212444432104 is an apocalyptic number.

It is an amenable number.

12444432104 is an abundant number, since it is smaller than the sum of its proper divisors (12683748316).

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

12444432104 is a wasteful number, since it uses less digits than its factorization.

12444432104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119658020 (or 119658016 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 12444432104 its reverse (40123444421), we get a palindrome (52567876525).

The spelling of 12444432104 in words is "twelve billion, four hundred forty-four million, four hundred thirty-two thousand, one hundred four".

Divisors: 1 2 4 8 13 26 52 104 119658001 239316002 478632004 957264008 1555554013 3111108026 6222216052 12444432104