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12321250608 = 2431136473511
BaseRepresentation
bin10110111100110011…
…10101110100110000
31011210200121101100010
423132121311310300
5200213220004413
65354343054520
7614221621302
oct133631656460
934720541303
1012321250608
11525302aa47
12247a441440
131214893044
1484c563972
154c1a7adc3
hex2de675d30

12321250608 has 80 divisors (see below), whose sum is σ = 32170369536. Its totient is φ = 4063288320.

The previous prime is 12321250597. The next prime is 12321250609. The reversal of 12321250608 is 80605212321.

It is not an unprimeable number, because it can be changed into a prime (12321250609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3507573 + ... + 3511083.

Almost surely, 212321250608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321250608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16085184768).

12321250608 is an abundant number, since it is smaller than the sum of its proper divisors (19849118928).

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

12321250608 is a wasteful number, since it uses less digits than its factorization.

12321250608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282 (or 4276 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 12321250608 its reverse (80605212321), we get a palindrome (92926462929).

The spelling of 12321250608 in words is "twelve billion, three hundred twenty-one million, two hundred fifty thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 113 226 339 452 647 678 904 1294 1356 1808 1941 2588 2712 3511 3882 5176 5424 7022 7764 10352 10533 14044 15528 21066 28088 31056 42132 56176 73111 84264 146222 168528 219333 292444 396743 438666 584888 793486 877332 1169776 1190229 1586972 1754664 2271617 2380458 3173944 3509328 4543234 4760916 6347888 6814851 9086468 9521832 13629702 18172936 19043664 27259404 36345872 54518808 109037616 256692721 513385442 770078163 1026770884 1540156326 2053541768 3080312652 4107083536 6160625304 12321250608