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12618750208 = 28172899529
BaseRepresentation
bin10111100000010001…
…01101100100000000
31012120102101221001211
423300020231210000
5201320400001313
65444051335504
7624463415131
oct136010554400
935512357054
1012618750208
115395a56889
122541bb1594
1312613c69cc
14879c85c88
154dcc43e3d
hex2f022d900

12618750208 has 36 divisors (see below), whose sum is σ = 26669876940. Its totient is φ = 5938233344.

The previous prime is 12618750197. The next prime is 12618750217. The reversal of 12618750208 is 80205781621.

It can be written as a sum of positive squares in 2 ways, for example, as 4089858304 + 8528891904 = 63952^2 + 92352^2 .

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, 1445413 + ... + 1454116.

It is an arithmetic number, because the mean of its divisors is an integer number (740829915).

Almost surely, 212618750208 is an apocalyptic number.

It is an amenable number.

12618750208 is an abundant number, since it is smaller than the sum of its proper divisors (14051126732).

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

12618750208 is an equidigital number, since it uses as much as digits as its factorization.

12618750208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899562 (or 2899548 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 12618750208 in words is "twelve billion, six hundred eighteen million, seven hundred fifty thousand, two hundred eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 256 272 544 1088 2176 4352 2899529 5799058 11598116 23196232 46392464 49291993 92784928 98583986 185569856 197167972 371139712 394335944 742279424 788671888 1577343776 3154687552 6309375104 12618750208