Base | Representation |
---|---|
bin | 111101000000001000… |
… | …1010001100111001000 |
3 | 110112010200112220011012 |
4 | 1322000101101213020 |
5 | 4121242230443422 |
6 | 140103034423052 |
7 | 12315220251260 |
oct | 1720021214710 |
9 | 415120486135 |
10 | 131001031112 |
11 | 50614737676 |
12 | 2147bb91a88 |
13 | c4793b3133 |
14 | 64aa4047a0 |
15 | 361ab9a4e2 |
hex | 1e804519c8 |
131001031112 has 32 divisors (see below), whose sum is σ = 283495878720. Its totient is φ = 55587422400.
The previous prime is 131001031097. The next prime is 131001031171. The reversal of 131001031112 is 211130100131.
It is a happy number.
It is a super-2 number, since 2×1310010311122 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11575058 + ... + 11586369.
It is an arithmetic number, because the mean of its divisors is an integer number (8859246210).
Almost surely, 2131001031112 is an apocalyptic number.
It is an amenable number.
131001031112 is an abundant number, since it is smaller than the sum of its proper divisors (152494847608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131001031112 is a wasteful number, since it uses less digits than its factorization.
131001031112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23161541 (or 23161537 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 14.
Adding to 131001031112 its reverse (211130100131), we get a palindrome (342131131243).
The spelling of 131001031112 in words is "one hundred thirty-one billion, one million, thirty-one thousand, one hundred twelve".
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