Base | Representation |
---|---|
bin | 111101000001000000… |
… | …0100111110011111110 |
3 | 110112012201110211211020 |
4 | 1322002000213303332 |
5 | 4121322214020110 |
6 | 140110000205010 |
7 | 12316023331203 |
oct | 1720200476376 |
9 | 415181424736 |
10 | 131030220030 |
11 | 5062a163746 |
12 | 21489909766 |
13 | c482462b98 |
14 | 64b0241caa |
15 | 361d513d70 |
hex | 1e82027cfe |
131030220030 has 64 divisors (see below), whose sum is σ = 331067520000. Its totient is φ = 33097991040.
The previous prime is 131030220029. The next prime is 131030220121. The reversal of 131030220030 is 30022030131.
It is a super-2 number, since 2×1310302200302 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 131030219991 and 131030220009.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7971220 + ... + 7987640.
It is an arithmetic number, because the mean of its divisors is an integer number (5172930000).
Almost surely, 2131030220030 is an apocalyptic number.
131030220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131030220030 is an abundant number, since it is smaller than the sum of its proper divisors (200037299970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131030220030 is a wasteful number, since it uses less digits than its factorization.
131030220030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30449.
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 131030220030 its reverse (30022030131), we get a palindrome (161052250161).
The spelling of 131030220030 in words is "one hundred thirty-one billion, thirty million, two hundred twenty thousand, thirty".
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