Base | Representation |
---|---|
bin | 11001001101000010… |
… | …10000110000101010 |
3 | 1021221000020220211100 |
4 | 30212201100300222 |
5 | 210202433433443 |
6 | 10114403342230 |
7 | 656212631640 |
oct | 144641206052 |
9 | 37830226740 |
10 | 13531155498 |
11 | 5813a91443 |
12 | 2757681976 |
13 | 13784449b3 |
14 | 925111190 |
15 | 542dc13d3 |
hex | 326850c2a |
13531155498 has 48 divisors (see below), whose sum is σ = 33567820416. Its totient is φ = 3858878880.
The previous prime is 13531155493. The next prime is 13531155499. The reversal of 13531155498 is 89455113531.
13531155498 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 1 + 1 + 554 + 98 = 666.
It is a super-2 number, since 2×135311554982 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13531155493) 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, 31086 + ... + 167417.
It is an arithmetic number, because the mean of its divisors is an integer number (699329592).
Almost surely, 213531155498 is an apocalyptic number.
13531155498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
13531155498 is an abundant number, since it is smaller than the sum of its proper divisors (20036664918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13531155498 is a wasteful number, since it uses less digits than its factorization.
13531155498 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 199059 (or 199056 counting only the distinct ones).
The product of its digits is 324000, while the sum is 45.
The spelling of 13531155498 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-five thousand, four hundred ninety-eight".
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