Base | Representation |
---|---|
bin | 111101000110001010… |
… | …0001110011010010110 |
3 | 110112122202211122010100 |
4 | 1322030110032122112 |
5 | 4122201000143110 |
6 | 140135054234530 |
7 | 12323223132666 |
oct | 1721424163226 |
9 | 415582748110 |
10 | 131203131030 |
11 | 507088242a4 |
12 | 215177b5a46 |
13 | c4ac22419a |
14 | 64c91b21a6 |
15 | 362d7bbbc0 |
hex | 1e8c50e696 |
131203131030 has 24 divisors (see below), whose sum is σ = 341128140912. Its totient is φ = 34987501584.
The previous prime is 131203131019. The next prime is 131203131041. The reversal of 131203131030 is 30131302131.
It is a happy number.
131203131030 is a `hidden beast` number, since 1 + 312 + 0 + 313 + 10 + 30 = 666.
It is an interprime number because it is at equal distance from previous prime (131203131019) and next prime (131203131041).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 131203130994 and 131203131012.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728906194 + ... + 728906373.
It is an arithmetic number, because the mean of its divisors is an integer number (14213672538).
Almost surely, 2131203131030 is an apocalyptic number.
131203131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131203131030 is an abundant number, since it is smaller than the sum of its proper divisors (209925009882).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131203131030 is a wasteful number, since it uses less digits than its factorization.
131203131030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1457812580 (or 1457812577 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 131203131030 its reverse (30131302131), we get a palindrome (161334433161).
The spelling of 131203131030 in words is "one hundred thirty-one billion, two hundred three million, one hundred thirty-one thousand, thirty".
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