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13481762976 = 25321119972131
BaseRepresentation
bin11001000111001001…
…10110000010100000
31021210120022112000200
430203210312002200
5210102312403401
610105440545200
7655043044263
oct144344660240
937716275020
1013481762976
115799116080
122743022200
13136b13cc56
1491c734cda
1553d8b6686
hex3239360a0

13481762976 has 144 divisors (see below), whose sum is σ = 41864685408. Its totient is φ = 4081420800.

The previous prime is 13481762971. The next prime is 13481763017. The reversal of 13481762976 is 67926718431.

13481762976 is a `hidden beast` number, since 1 + 3 + 4 + 8 + 1 + 7 + 629 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (13481762971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6325431 + ... + 6327561.

It is an arithmetic number, because the mean of its divisors is an integer number (290726982).

Almost surely, 213481762976 is an apocalyptic number.

13481762976 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 13481762976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20932342704).

13481762976 is an abundant number, since it is smaller than the sum of its proper divisors (28382922432).

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

13481762976 is a wasteful number, since it uses less digits than its factorization.

13481762976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155 (or 4144 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 13481762976 in words is "thirteen billion, four hundred eighty-one million, seven hundred sixty-two thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 96 99 132 144 176 198 264 288 352 396 528 792 1056 1584 1997 2131 3168 3994 4262 5991 6393 7988 8524 11982 12786 15976 17048 17973 19179 21967 23441 23964 25572 31952 34096 35946 38358 43934 46882 47928 51144 63904 65901 68192 70323 71892 76716 87868 93764 95856 102288 131802 140646 143784 153432 175736 187528 191712 197703 204576 210969 263604 281292 287568 306864 351472 375056 395406 421938 527208 562584 575136 613728 702944 750112 790812 843876 1054416 1125168 1581624 1687752 2108832 2250336 3163248 3375504 4255607 6326496 6751008 8511214 12766821 17022428 25533642 34044856 38300463 46811677 51067284 68089712 76600926 93623354 102134568 136179424 140435031 153201852 187246708 204269136 280870062 306403704 374493416 408538272 421305093 561740124 612807408 748986832 842610186 1123480248 1225614816 1497973664 1685220372 2246960496 3370440744 4493920992 6740881488 13481762976