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13105443045031 = 29837097679437
BaseRepresentation
bin1011111010110101100101…
…0001101111111010100111
31201101212102212012012121121
42332231121101233322213
53204204421404420111
643512320222554411
72521560044606011
oct276553121577247
951355385165547
1013105443045031
1141a2a94a39117
121577b0a438a07
13740ab805985c
14334441d151b1
1517ad81690871
hexbeb5946fea7

13105443045031 has 16 divisors (see below), whose sum is σ = 13740050469600. Its totient is φ = 12483445419648.

The previous prime is 13105443044951. The next prime is 13105443045047. The reversal of 13105443045031 is 13054034450131.

It is a cyclic number.

It is not a de Polignac number, because 13105443045031 - 235 = 13071083306663 is a prime.

It is a super-2 number, since 2×131054430450312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105443015031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2133156 + ... + 5546281.

It is an arithmetic number, because the mean of its divisors is an integer number (858753154350).

Almost surely, 213105443045031 is an apocalyptic number.

13105443045031 is a deficient number, since it is larger than the sum of its proper divisors (634607424569).

13105443045031 is an equidigital number, since it uses as much as digits as its factorization.

13105443045031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680258.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 13105443045031 its reverse (13054034450131), we get a palindrome (26159477495162).

The spelling of 13105443045031 in words is "thirteen trillion, one hundred five billion, four hundred forty-three million, forty-five thousand, thirty-one".

Divisors: 1 29 83 709 2407 20561 58847 1706563 7679437 222703673 637393271 5444720833 18484404859 157896904157 451911829139 13105443045031