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12982597020 = 223251923165047
BaseRepresentation
bin11000001011101001…
…01011010110011100
31020111210001021001200
430011310223112130
5203042021101040
65544130035500
7636502153041
oct140564532634
936453037050
1012982597020
115562379328
122623a18b90
1312bb8ba693
148b23191c8
1550eb65630
hex305d2b59c

12982597020 has 144 divisors (see below), whose sum is σ = 43255779840. Its totient is φ = 3137194368.

The previous prime is 12982596967. The next prime is 12982597021. The reversal of 12982597020 is 2079528921.

It is a happy number.

12982597020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12982597021) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3864 + ... + 161183.

It is an arithmetic number, because the mean of its divisors is an integer number (300387360).

Almost surely, 212982597020 is an apocalyptic number.

12982597020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12982597020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21627889920).

12982597020 is an abundant number, since it is smaller than the sum of its proper divisors (30273182820).

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

12982597020 is a wasteful number, since it uses less digits than its factorization.

12982597020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165104 (or 165099 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 12982597020 in words is "twelve billion, nine hundred eighty-two million, five hundred ninety-seven thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 23 30 36 38 45 46 57 60 69 76 90 92 95 114 115 138 171 180 190 207 228 230 276 285 342 345 380 414 437 460 570 684 690 828 855 874 1035 1140 1311 1380 1710 1748 2070 2185 2622 3420 3933 4140 4370 5244 6555 7866 8740 13110 15732 19665 26220 39330 78660 165047 330094 495141 660188 825235 990282 1485423 1650470 1980564 2475705 2970846 3135893 3300940 3796081 4951410 5941692 6271786 7427115 7592162 9407679 9902820 11388243 12543572 14854230 15184324 15679465 18815358 18980405 22776486 28223037 29708460 31358930 34164729 37630716 37960810 45552972 47038395 56446074 56941215 62717860 68329458 72125539 75921620 94076790 112892148 113882430 136658916 141115185 144251078 170823645 188153580 216376617 227764860 282230370 288502156 341647290 360627695 432753234 564460740 649129851 683294580 721255390 865506468 1081883085 1298259702 1442510780 2163766170 2596519404 3245649255 4327532340 6491298510 12982597020