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13135731474 = 232189288579
BaseRepresentation
bin11000011101111001…
…10101101100010010
31020220110012022001010
430032330311230102
5203400221401344
610011240151350
7643341606135
oct141674655422
936813168033
1013135731474
115630861528
122667168556
131314546198
148c87bc21c
1551d3138b9
hex30ef35b12

13135731474 has 8 divisors (see below), whose sum is σ = 26271462960. Its totient is φ = 4378577156.

The previous prime is 13135731473. The next prime is 13135731487. The reversal of 13135731474 is 47413753131.

It is a sphenic number, since it is the product of 3 distinct primes.

13135731474 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13135731473) 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, 1094644284 + ... + 1094644295.

It is an arithmetic number, because the mean of its divisors is an integer number (3283932870).

Almost surely, 213135731474 is an apocalyptic number.

13135731474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13135731474 is a wasteful number, since it uses less digits than its factorization.

13135731474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189288584.

The product of its digits is 105840, while the sum is 39.

The spelling of 13135731474 in words is "thirteen billion, one hundred thirty-five million, seven hundred thirty-one thousand, four hundred seventy-four".

Divisors: 1 2 3 6 2189288579 4378577158 6567865737 13135731474