Base | Representation |
---|---|
bin | 111100001101110001… |
… | …0001111011111010000 |
3 | 110100202220102101221100 |
4 | 1320123202033133100 |
5 | 4104312102330143 |
6 | 135223223024400 |
7 | 12225306123555 |
oct | 1703342173720 |
9 | 410686371840 |
10 | 129310980048 |
11 | 4a92774a258 |
12 | 21089b9b100 |
13 | c26a20b113 |
14 | 6389b8ca2c |
15 | 356c60e6d3 |
hex | 1e1b88f7d0 |
129310980048 has 240 divisors, whose sum is σ = 378596125440. Its totient is φ = 41150592000.
The previous prime is 129310980041. The next prime is 129310980049. The reversal of 129310980048 is 840089013921.
It is a junction number, because it is equal to n+sod(n) for n = 129310979985 and 129310980012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129310980041) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184466098 + ... + 184466798.
It is an arithmetic number, because the mean of its divisors is an integer number (1577483856).
Almost surely, 2129310980048 is an apocalyptic number.
129310980048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 129310980048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189298062720).
129310980048 is an abundant number, since it is smaller than the sum of its proper divisors (249285145392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129310980048 is a wasteful number, since it uses less digits than its factorization.
129310980048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1178 (or 1169 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 45.
Adding to 129310980048 its reverse (840089013921), we get a palindrome (969399993969).
The spelling of 129310980048 in words is "one hundred twenty-nine billion, three hundred ten million, nine hundred eighty thousand, forty-eight".
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