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12019068256 = 251335381847
BaseRepresentation
bin10110011000110010…
…00110110101100000
31011000121222221002011
423030121012311200
5144103340141011
65304350202304
7603562252216
oct131431066540
934017887064
1012019068256
1151084a5968
1223b51b3394
1311970acb10
14820382cb6
154a528a621
hex2cc646d60

12019068256 has 48 divisors (see below), whose sum is σ = 25555237344. Its totient is φ = 5531480064.

The previous prime is 12019068247. The next prime is 12019068277. The reversal of 12019068256 is 65286091021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105925 + ... + 187771.

It is an arithmetic number, because the mean of its divisors is an integer number (532400778).

Almost surely, 212019068256 is an apocalyptic number.

12019068256 is a gapful number since it is divisible by the number (16) 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 12019068256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12777618672).

12019068256 is an abundant number, since it is smaller than the sum of its proper divisors (13536169088).

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

12019068256 is a wasteful number, since it uses less digits than its factorization.

12019068256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82223 (or 82215 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 12019068256 in words is "twelve billion, nineteen million, sixty-eight thousand, two hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 353 416 706 1412 2824 4589 5648 9178 11296 18356 36712 73424 81847 146848 163694 327388 654776 1064011 1309552 2128022 2619104 4256044 8512088 17024176 28891991 34048352 57783982 115567964 231135928 375595883 462271856 751191766 924543712 1502383532 3004767064 6009534128 12019068256