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12091100104 = 231997756829
BaseRepresentation
bin10110100001010111…
…11000101111001000
31011012122112112012101
423100223320233020
5144230310200404
65315442123144
7605425440466
oct132053705710
934178475171
1012091100104
115145124516
1224153504b4
1311a8cb0405
14829b73836
154ab7682a4
hex2d0af8bc8

12091100104 has 16 divisors (see below), whose sum is σ = 22682195100. Its totient is φ = 6042514752.

The previous prime is 12091100101. The next prime is 12091100113. The reversal of 12091100104 is 40100119021.

12091100104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11428037604 + 663062500 = 106902^2 + 25750^2 .

It is not an unprimeable number, because it can be changed into a prime (12091100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362439 + ... + 394390.

Almost surely, 212091100104 is an apocalyptic number.

It is an amenable number.

12091100104 is a deficient number, since it is larger than the sum of its proper divisors (10591094996).

12091100104 is a wasteful number, since it uses less digits than its factorization.

12091100104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758832 (or 758828 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12091100104 its reverse (40100119021), we get a palindrome (52191219125).

The spelling of 12091100104 in words is "twelve billion, ninety-one million, one hundred thousand, one hundred four".

Divisors: 1 2 4 8 1997 3994 7988 15976 756829 1513658 3027316 6054632 1511387513 3022775026 6045550052 12091100104