Base | Representation |
---|---|
bin | 111101000000001000… |
… | …1111010111100011100 |
3 | 110112010200212111101120 |
4 | 1322000101322330130 |
5 | 4121242301403122 |
6 | 140103042210540 |
7 | 12315221554665 |
oct | 1720021727434 |
9 | 415120774346 |
10 | 131001200412 |
11 | 50614842895 |
12 | 21480053a50 |
13 | c479442204 |
14 | 64aa44a36c |
15 | 361abd075c |
hex | 1e8047af1c |
131001200412 has 12 divisors (see below), whose sum is σ = 305669467656. Its totient is φ = 43667066800.
The previous prime is 131001200387. The next prime is 131001200419. The reversal of 131001200412 is 214002100131.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-2 number, since 2×1310012004122 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131001200391 and 131001200400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131001200419) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5458383339 + ... + 5458383362.
It is an arithmetic number, because the mean of its divisors is an integer number (25472455638).
Almost surely, 2131001200412 is an apocalyptic number.
131001200412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131001200412 is an abundant number, since it is smaller than the sum of its proper divisors (174668267244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131001200412 is a wasteful number, since it uses less digits than its factorization.
131001200412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10916766708 (or 10916766706 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 131001200412 its reverse (214002100131), we get a palindrome (345003300543).
The spelling of 131001200412 in words is "one hundred thirty-one billion, one million, two hundred thousand, four hundred twelve".
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