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12628365376 = 2611212772
BaseRepresentation
bin10111100001011010…
…11001000001000000
31012121002111102121011
423300231121001000
5201330330143001
65445033410304
7624641222524
oct136055310100
935532442534
1012628365376
1153a0423900
122545269994
1312633b2363
1487b269d84
154dd9e2d51
hex2f0b59040

12628365376 has 63 divisors (see below), whose sum is σ = 27566230237. Its totient is φ = 5735671040.

The previous prime is 12628365359. The next prime is 12628365377. The reversal of 12628365376 is 67356382621.

The square root of 12628365376 is 112376.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8295566400 + 4332798976 = 91080^2 + 65824^2 .

It is a super-3 number, since 3×126283653763 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12628365377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9888450 + ... + 9889726.

Almost surely, 212628365376 is an apocalyptic number.

12628365376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12628365376 is the 112376-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12628365376

12628365376 is an abundant number, since it is smaller than the sum of its proper divisors (14937864861).

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

12628365376 is an frugal number, since it uses more digits than its factorization.

12628365376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588 (or 1290 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

Multiplying 12628365376 by its sum of digits (49), we get a square (618789903424 = 7866322).

It can be divided in two parts, 1262 and 8365376, that added together give a palindrome (8366638).

The spelling of 12628365376 in words is "twelve billion, six hundred twenty-eight million, three hundred sixty-five thousand, three hundred seventy-six".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 176 242 352 484 704 968 1277 1936 2554 3872 5108 7744 10216 14047 20432 28094 40864 56188 81728 112376 154517 224752 309034 449504 618068 899008 1236136 1630729 2472272 3261458 4944544 6522916 9889088 13045832 17938019 26091664 35876038 52183328 71752076 104366656 143504152 197318209 287008304 394636418 574016608 789272836 1148033216 1578545672 3157091344 6314182688 12628365376