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12626146940 = 2251158797771
BaseRepresentation
bin10111100001001001…
…11011011001111100
31012120221022201110212
423300210323121330
5201324243200230
65444514051552
7624613323011
oct136044733174
935527281425
1012626146940
11539a149090
122544579bb8
131262ab6684
1487ac4d708
154dd705895
hex2f093b67c

12626146940 has 48 divisors (see below), whose sum is σ = 28974927744. Its totient is φ = 4583457600.

The previous prime is 12626146937. The next prime is 12626146961. The reversal of 12626146940 is 4964162621.

It is a congruent number.

It is an unprimeable number.

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, 80255 + ... + 178025.

It is an arithmetic number, because the mean of its divisors is an integer number (603644328).

Almost surely, 212626146940 is an apocalyptic number.

12626146940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12626146940 is an abundant number, since it is smaller than the sum of its proper divisors (16348780804).

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

12626146940 is a wasteful number, since it uses less digits than its factorization.

12626146940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98378 (or 98376 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 12626146940 in words is "twelve billion, six hundred twenty-six million, one hundred forty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 587 1174 2348 2935 5870 6457 11740 12914 25828 32285 64570 97771 129140 195542 391084 488855 977710 1075481 1955420 2150962 4301924 5377405 10754810 21509620 57391577 114783154 229566308 286957885 573915770 631307347 1147831540 1262614694 2525229388 3156536735 6313073470 12626146940