Base | Representation |
---|---|
bin | 1011111100000001101011… |
… | …1101001011110010110001 |
3 | 1201110211011121110001111001 |
4 | 2333000122331023302301 |
5 | 3210023241302201111 |
6 | 43525535324522001 |
7 | 2523212231463463 |
oct | 277003275136261 |
9 | 51424147401431 |
10 | 13125872303281 |
11 | 42007187a7221 |
12 | 157ba700b0301 |
13 | 7429c264b24a |
14 | 33541d21a133 |
15 | 17b679e4e1c1 |
hex | bf01af4bcb1 |
13125872303281 has 8 divisors (see below), whose sum is σ = 13156522202240. Its totient is φ = 13095237558528.
The previous prime is 13125872303237. The next prime is 13125872303377. The reversal of 13125872303281 is 18230327852131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13125872303281 - 215 = 13125872270513 is a prime.
It is a super-2 number, since 2×131258723032812 (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 (13125872303231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053296 + ... + 5519761.
It is an arithmetic number, because the mean of its divisors is an integer number (1644565275280).
Almost surely, 213125872303281 is an apocalyptic number.
It is an amenable number.
13125872303281 is a deficient number, since it is larger than the sum of its proper divisors (30649898959).
13125872303281 is an equidigital number, since it uses as much as digits as its factorization.
13125872303281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7577103.
The product of its (nonzero) digits is 483840, while the sum is 46.
It can be divided in two parts, 13125872 and 303281, that added together give a triangular number (13429153 = T5182).
The spelling of 13125872303281 in words is "thirteen trillion, one hundred twenty-five billion, eight hundred seventy-two million, three hundred three thousand, two hundred eighty-one".
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