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12600061000 = 235353237737
BaseRepresentation
bin10111011110000010…
…11010110001001000
31012112010020102021221
423233001122301020
5201301103423000
65442143011424
7624145515502
oct135701326110
935463212257
1012600061000
11538645135a
122537899b74
13125a5820c7
148775bcd72
154db2a161a
hex2ef05ac48

12600061000 has 64 divisors (see below), whose sum is σ = 30040573680. Its totient is φ = 4944908800.

The previous prime is 12600060973. The next prime is 12600061009. The reversal of 12600061000 is 16000621.

It can be written as a sum of positive squares in 8 ways, for example, as 3619466244 + 8980594756 = 60162^2 + 94766^2 .

It is not an unprimeable number, because it can be changed into a prime (12600061009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65869 + ... + 171868.

Almost surely, 212600061000 is an apocalyptic number.

12600061000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12600061000 is an abundant number, since it is smaller than the sum of its proper divisors (17440512680).

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

12600061000 is a wasteful number, since it uses less digits than its factorization.

12600061000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237811 (or 237797 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12600061000 its reverse (16000621), we get a palindrome (12616061621).

The spelling of 12600061000 in words is "twelve billion, six hundred million, sixty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 53 100 106 125 200 212 250 265 424 500 530 1000 1060 1325 2120 2650 5300 6625 10600 13250 26500 53000 237737 475474 950948 1188685 1901896 2377370 4754740 5943425 9509480 11886850 12600061 23773700 25200122 29717125 47547400 50400244 59434250 63000305 100800488 118868500 126000610 237737000 252001220 315001525 504002440 630003050 1260006100 1575007625 2520012200 3150015250 6300030500 12600061000