Base | Representation |
---|---|
bin | 111101000000110000… |
… | …1101110010100001001 |
3 | 110112012011020022221120 |
4 | 1322001201232110021 |
5 | 4121313130321301 |
6 | 140105110425453 |
7 | 12315564434430 |
oct | 1720141562411 |
9 | 415164208846 |
10 | 131022120201 |
11 | 50625631175 |
12 | 21487062289 |
13 | c48088819b |
14 | 64ad134117 |
15 | 361c963e36 |
hex | 1e8186e509 |
131022120201 has 32 divisors (see below), whose sum is σ = 200447090688. Its totient is φ = 74572280640.
The previous prime is 131022120191. The next prime is 131022120209. The reversal of 131022120201 is 102021220131.
It is not a de Polignac number, because 131022120201 - 229 = 130485249289 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131022120209) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9482640 + ... + 9496446.
It is an arithmetic number, because the mean of its divisors is an integer number (6263971584).
Almost surely, 2131022120201 is an apocalyptic number.
It is an amenable number.
131022120201 is a deficient number, since it is larger than the sum of its proper divisors (69424970487).
131022120201 is a wasteful number, since it uses less digits than its factorization.
131022120201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15581.
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 131022120201 its reverse (102021220131), we get a palindrome (233043340332).
The spelling of 131022120201 in words is "one hundred thirty-one billion, twenty-two million, one hundred twenty thousand, two hundred one".
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