Base | Representation |
---|---|
bin | 11000001111000011… |
… | …10101110011000110 |
3 | 1020120202220010111200 |
4 | 30013201311303012 |
5 | 203121332313020 |
6 | 5551031243330 |
7 | 640300330041 |
oct | 140741656306 |
9 | 36522803450 |
10 | 13011213510 |
11 | 5577544319 |
12 | 2631519546 |
13 | 12c47c9a09 |
14 | 8b6047c58 |
15 | 512419590 |
hex | 307875cc6 |
13011213510 has 96 divisors (see below), whose sum is σ = 34604623872. Its totient is φ = 3390361920.
The previous prime is 13011213497. The next prime is 13011213529. The reversal of 13011213510 is 1531211031.
13011213510 is a `hidden beast` number, since 1 + 30 + 1 + 121 + 3 + 510 = 666.
13011213510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3073095 + ... + 3077325.
It is an arithmetic number, because the mean of its divisors is an integer number (360464832).
Almost surely, 213011213510 is an apocalyptic number.
13011213510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 13011213510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17302311936).
13011213510 is an abundant number, since it is smaller than the sum of its proper divisors (21593410362).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13011213510 is a wasteful number, since it uses less digits than its factorization.
13011213510 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5018 (or 5015 counting only the distinct ones).
The product of its (nonzero) digits is 90, while the sum is 18.
Adding to 13011213510 its reverse (1531211031), we get a palindrome (14542424541).
The spelling of 13011213510 in words is "thirteen billion, eleven million, two hundred thirteen thousand, five hundred ten".
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