Base | Representation |
---|---|
bin | 111101000110000100… |
… | …0110110101111111000 |
3 | 110112122120020012122002 |
4 | 1322030020312233320 |
5 | 4122144214304040 |
6 | 140134510320132 |
7 | 12323155610315 |
oct | 1721410665770 |
9 | 415576205562 |
10 | 131200150520 |
11 | 50707078a6a |
12 | 215167b9048 |
13 | c4ab71c67a |
14 | 64c8a37d0c |
15 | 362d3cda15 |
hex | 1e8c236bf8 |
131200150520 has 96 divisors (see below), whose sum is σ = 321606184320. Its totient is φ = 48113982720.
The previous prime is 131200150493. The next prime is 131200150531. The reversal of 131200150520 is 25051002131.
It is a happy number.
It is a super-3 number, since 3×1312001505203 (a number of 34 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 131200150492 and 131200150501.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301094 + ... + 594186.
It is an arithmetic number, because the mean of its divisors is an integer number (3350064420).
Almost surely, 2131200150520 is an apocalyptic number.
131200150520 is a gapful number since it is divisible by the number (10) 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 131200150520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160803092160).
131200150520 is an abundant number, since it is smaller than the sum of its proper divisors (190406033800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131200150520 is a wasteful number, since it uses less digits than its factorization.
131200150520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 293173 (or 293150 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 20.
Adding to 131200150520 its reverse (25051002131), we get a palindrome (156251152651).
The spelling of 131200150520 in words is "one hundred thirty-one billion, two hundred million, one hundred fifty thousand, five hundred twenty".
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