Base | Representation |
---|---|
bin | 111101000110011101… |
… | …1000001100100010000 |
3 | 110112200110222101010010 |
4 | 1322030323001210100 |
5 | 4122211101131112 |
6 | 140140100234520 |
7 | 12323405444031 |
oct | 1721473014420 |
9 | 415613871103 |
10 | 131213302032 |
11 | 5071354098a |
12 | 2151b09ba40 |
13 | c4b1375827 |
14 | 64ca69ca88 |
15 | 362e62a63c |
hex | 1e8cec1910 |
131213302032 has 80 divisors (see below), whose sum is σ = 342646462080. Its totient is φ = 43264628736.
The previous prime is 131213302019. The next prime is 131213302109. The reversal of 131213302032 is 230203312131.
It is a super-3 number, since 3×1312133020323 (a number of 34 digits) contains 333 as substring.
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, 2737053 + ... + 2784579.
It is an arithmetic number, because the mean of its divisors is an integer number (4283080776).
Almost surely, 2131213302032 is an apocalyptic number.
131213302032 is a gapful number since it is divisible by the number (12) 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 131213302032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171323231040).
131213302032 is an abundant number, since it is smaller than the sum of its proper divisors (211433160048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131213302032 is a wasteful number, since it uses less digits than its factorization.
131213302032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48160 (or 48154 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 131213302032 its reverse (230203312131), we get a palindrome (361416614163).
The spelling of 131213302032 in words is "one hundred thirty-one billion, two hundred thirteen million, three hundred two thousand, thirty-two".
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