Base | Representation |
---|---|
bin | 111101000000001011… |
… | …0000111101011001011 |
3 | 110112010202221102021221 |
4 | 1322000112013223023 |
5 | 4121243042114011 |
6 | 140103121542511 |
7 | 12315234121042 |
oct | 1720026075313 |
9 | 415122842257 |
10 | 131002301131 |
11 | 50615424879 |
12 | 214804a4a37 |
13 | c479739220 |
14 | 64aa655559 |
15 | 361ad4b971 |
hex | 1e80587acb |
131002301131 has 4 divisors (see below), whose sum is σ = 141079401232. Its totient is φ = 120925201032.
The previous prime is 131002301123. The next prime is 131002301147. The reversal of 131002301131 is 131103200131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131103200131 = 1783 ⋅73529557.
It is a cyclic number.
It is not a de Polignac number, because 131002301131 - 23 = 131002301123 is a prime.
It is a super-2 number, since 2×1310023011312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131002301161) 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, 5038550031 + ... + 5038550056.
It is an arithmetic number, because the mean of its divisors is an integer number (35269850308).
Almost surely, 2131002301131 is an apocalyptic number.
131002301131 is a deficient number, since it is larger than the sum of its proper divisors (10077100101).
131002301131 is a wasteful number, since it uses less digits than its factorization.
131002301131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10077100100.
The product of its (nonzero) digits is 54, while the sum is 16.
Adding to 131002301131 its reverse (131103200131), we get a palindrome (262105501262).
The spelling of 131002301131 in words is "one hundred thirty-one billion, two million, three hundred one thousand, one hundred thirty-one".
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