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12699886368 = 2531319535589
BaseRepresentation
bin10111101001111100…
…01110001100100000
31012210002002001221210
423310332032030200
5202002132330433
65500110350120
7626500152531
oct136476161440
935702061853
1012699886368
115427833664
1225651bb340
131275164280
14886966688
154e4e1e463
hex2f4f8e320

12699886368 has 96 divisors (see below), whose sum is σ = 37791230400. Its totient is φ = 3701984256.

The previous prime is 12699886337. The next prime is 12699886427. The reversal of 12699886368 is 86368899621.

12699886368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×126998863682 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12699886299 and 12699886308.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 244083 + ... + 291506.

It is an arithmetic number, because the mean of its divisors is an integer number (393658650).

Almost surely, 212699886368 is an apocalyptic number.

It is an amenable number.

12699886368 is an abundant number, since it is smaller than the sum of its proper divisors (25091344032).

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

12699886368 is a wasteful number, since it uses less digits than its factorization.

12699886368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535634 (or 535626 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 66.

The spelling of 12699886368 in words is "twelve billion, six hundred ninety-nine million, eight hundred eighty-six thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 19 24 26 32 38 39 48 52 57 76 78 96 104 114 152 156 208 228 247 304 312 416 456 494 608 624 741 912 988 1248 1482 1824 1976 2964 3952 5928 7904 11856 23712 535589 1071178 1606767 2142356 3213534 4284712 6427068 6962657 8569424 10176191 12854136 13925314 17138848 20352382 20887971 25708272 27850628 30528573 40704764 41775942 51416544 55701256 61057146 81409528 83551884 111402512 122114292 132290483 162819056 167103768 222805024 244228584 264580966 325638112 334207536 396871449 488457168 529161932 668415072 793742898 976914336 1058323864 1587485796 2116647728 3174971592 4233295456 6349943184 12699886368