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13444106769 = 323770157593
BaseRepresentation
bin11001000010101010…
…01100101000010001
31021200221110101102100
430201111030220101
5210013142404034
610102013511013
7654105010362
oct144125145021
937627411370
1013444106769
115779936445
1227324a2469
1313633b7182
14917731b69
1553a429099
hex32154ca11

13444106769 has 24 divisors (see below), whose sum is σ = 19972908072. Its totient is φ = 8707910400.

The previous prime is 13444106747. The next prime is 13444106777. The reversal of 13444106769 is 96760144431.

13444106769 is a `hidden beast` number, since 134 + 441 + 0 + 6 + 76 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4963907025 + 8480199744 = 70455^2 + 92088^2 .

It is not a de Polignac number, because 13444106769 - 25 = 13444106737 is a prime.

It is a super-2 number, since 2×134441067692 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13444106789) 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, 204637 + ... + 262229.

It is an arithmetic number, because the mean of its divisors is an integer number (832204503).

Almost surely, 213444106769 is an apocalyptic number.

It is an amenable number.

13444106769 is a deficient number, since it is larger than the sum of its proper divisors (6528801303).

13444106769 is a wasteful number, since it uses less digits than its factorization.

13444106769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58337 (or 58334 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 13444106769 in words is "thirteen billion, four hundred forty-four million, one hundred six thousand, seven hundred sixty-nine".

Divisors: 1 3 9 37 111 333 701 2103 6309 25937 57593 77811 172779 233433 518337 2130941 6392823 19178469 40372693 121118079 363354237 1493789641 4481368923 13444106769