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13107148044481 = 16848177796001
BaseRepresentation
bin1011111010111011111011…
…1001110011100011000001
31201102000211200110011011101
42332232332321303203001
53204221414344410411
643513201331014401
72521650230062621
oct276567671634301
951360750404141
1013107148044481
1141a378a406477
12157830543a401
13740cca36687a
1433456453c881
1517ae311d08c1
hexbebbee738c1

13107148044481 has 4 divisors (see below), whose sum is σ = 13107226008964. Its totient is φ = 13107070080000.

The previous prime is 13107148044479. The next prime is 13107148044499. The reversal of 13107148044481 is 18444084170131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7170050513025 + 5937097531456 = 2677695^2 + 2436616^2 .

It is a cyclic number.

It is not a de Polignac number, because 13107148044481 - 21 = 13107148044479 is a prime.

It is a super-2 number, since 2×131071480444812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13107148044421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38729520 + ... + 39066481.

It is an arithmetic number, because the mean of its divisors is an integer number (3276806502241).

Almost surely, 213107148044481 is an apocalyptic number.

It is an amenable number.

13107148044481 is a deficient number, since it is larger than the sum of its proper divisors (77964483).

13107148044481 is an equidigital number, since it uses as much as digits as its factorization.

13107148044481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77964482.

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 13107148044481 in words is "thirteen trillion, one hundred seven billion, one hundred forty-eight million, forty-four thousand, four hundred eighty-one".

Divisors: 1 168481 77796001 13107148044481