Base | Representation |
---|---|
bin | 111101000001100111… |
… | …1111101111011111110 |
3 | 110112021011121121001121 |
4 | 1322003033331323332 |
5 | 4121343030120110 |
6 | 140112022101154 |
7 | 12316365201460 |
oct | 1720317757376 |
9 | 415234547047 |
10 | 131051020030 |
11 | 5063a980027 |
12 | 2149487a7ba |
13 | c486866488 |
14 | 64b2cd8130 |
15 | 3620271cda |
hex | 1e833fdefe |
131051020030 has 32 divisors (see below), whose sum is σ = 269603536896. Its totient is φ = 44929633824.
The previous prime is 131051019901. The next prime is 131051020043. The reversal of 131051020030 is 30020150131.
It is a super-2 number, since 2×1310510200302 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131051019986 and 131051020013.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2320387 + ... + 2376193.
It is an arithmetic number, because the mean of its divisors is an integer number (8425110528).
Almost surely, 2131051020030 is an apocalyptic number.
131051020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131051020030 is an abundant number, since it is smaller than the sum of its proper divisors (138552516866).
131051020030 is a wasteful number, since it uses less digits than its factorization.
131051020030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89368.
The product of its (nonzero) digits is 90, while the sum is 16.
Adding to 131051020030 its reverse (30020150131), we get a palindrome (161071170161).
The spelling of 131051020030 in words is "one hundred thirty-one billion, fifty-one million, twenty thousand, thirty".
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