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12769711040 = 265347115001
BaseRepresentation
bin10111110010010001…
…00101001111000000
31012221221110112101202
423321020211033000
5202123021223130
65511043120332
7631305516152
oct137110451700
935857415352
1012769711040
1154631949a9
1225846730a8
131286771048
14891d40ad2
154eb113145
hex2f92253c0

12769711040 has 56 divisors (see below), whose sum is σ = 30495770352. Its totient is φ = 5093120000.

The previous prime is 12769711039. The next prime is 12769711049. The reversal of 12769711040 is 4011796721.

It is a junction number, because it is equal to n+sod(n) for n = 12769710985 and 12769711003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12769711049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53540 + ... + 168540.

Almost surely, 212769711040 is an apocalyptic number.

12769711040 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 12769711040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15247885176).

12769711040 is an abundant number, since it is smaller than the sum of its proper divisors (17726059312).

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

12769711040 is a wasteful number, since it uses less digits than its factorization.

12769711040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115365 (or 115355 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 12769711040 in words is "twelve billion, seven hundred sixty-nine million, seven hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 347 694 1388 1735 2776 3470 5552 6940 11104 13880 22208 27760 55520 111040 115001 230002 460004 575005 920008 1150010 1840016 2300020 3680032 4600040 7360064 9200080 18400160 36800320 39905347 79810694 159621388 199526735 319242776 399053470 638485552 798106940 1276971104 1596213880 2553942208 3192427760 6384855520 12769711040