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12975301926 = 2332373143111
BaseRepresentation
bin11000001010110001…
…10110010100100110
31020111021022122002000
430011120312110212
5203033134130201
65543305430130
7636353150406
oct140530662446
936437278060
1012975301926
115559246424
12262149b346
1312ba235062
148b137a806
1550e1c3d86
hex305636526

12975301926 has 64 divisors (see below), whose sum is σ = 30500029440. Its totient is φ = 4080352320.

The previous prime is 12975301909. The next prime is 12975301981. The reversal of 12975301926 is 62910357921.

It is a happy number.

12975301926 is a `hidden beast` number, since 1 + 2 + 97 + 530 + 1 + 9 + 26 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19111 + ... + 162221.

It is an arithmetic number, because the mean of its divisors is an integer number (476562960).

Almost surely, 212975301926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12975301926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15250014720).

12975301926 is an abundant number, since it is smaller than the sum of its proper divisors (17524727514).

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

12975301926 is a wasteful number, since it uses less digits than its factorization.

12975301926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143218 (or 143212 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 12975301926 in words is "twelve billion, nine hundred seventy-five million, three hundred one thousand, nine hundred twenty-six".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 73 138 146 207 219 414 438 621 657 1242 1314 1679 1971 3358 3942 5037 10074 15111 30222 45333 90666 143111 286222 429333 858666 1287999 2575998 3291553 3863997 6583106 7727994 9874659 10447103 19749318 20894206 29623977 31341309 59247954 62682618 88871931 94023927 177743862 188047854 240283369 282071781 480566738 564143562 720850107 1441700214 2162550321 4325100642 6487650963 12975301926