Base | Representation |
---|---|
bin | 11000010001010101… |
… | …01100010100101010 |
3 | 1020122002211101121220 |
4 | 30020222230110222 |
5 | 203141224424320 |
6 | 5552552442510 |
7 | 640621550340 |
oct | 141052542452 |
9 | 36562741556 |
10 | 13030311210 |
11 | 55872a8744 |
12 | 26379a9436 |
13 | 12c8755527 |
14 | 8b87b9990 |
15 | 513e3ce40 |
hex | 308aac52a |
13030311210 has 128 divisors (see below), whose sum is σ = 37820473344. Its totient is φ = 2808664320.
The previous prime is 13030311167. The next prime is 13030311211. The reversal of 13030311210 is 1211303031.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 13030311210.
It is not an unprimeable number, because it can be changed into a prime (13030311211) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323932 + ... + 361928.
It is an arithmetic number, because the mean of its divisors is an integer number (295472448).
Almost surely, 213030311210 is an apocalyptic number.
13030311210 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 13030311210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18910236672).
13030311210 is an abundant number, since it is smaller than the sum of its proper divisors (24790162134).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13030311210 is a wasteful number, since it uses less digits than its factorization.
13030311210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38108.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 13030311210 its reverse (1211303031), we get a palindrome (14241614241).
The spelling of 13030311210 in words is "thirteen billion, thirty million, three hundred eleven thousand, two hundred ten".
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