Base | Representation |
---|---|
bin | 111101000001000000… |
… | …0001011000001101001 |
3 | 110112012201020212002020 |
4 | 1322002000023001221 |
5 | 4121322201231441 |
6 | 140105553455053 |
7 | 12316022330352 |
oct | 1720200130151 |
9 | 415181225066 |
10 | 131030102121 |
11 | 5062a0930a6 |
12 | 21489871489 |
13 | c482421309 |
14 | 64b0210d29 |
15 | 361d4dde66 |
hex | 1e8200b069 |
131030102121 has 8 divisors (see below), whose sum is σ = 177570849024. Its totient is φ = 85921378320.
The previous prime is 131030102087. The next prime is 131030102129. The reversal of 131030102121 is 121201030131.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131030102121 - 221 = 131028004969 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 131030102121.
It is not an unprimeable number, because it can be changed into a prime (131030102129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358005561 + ... + 358005926.
It is an arithmetic number, because the mean of its divisors is an integer number (22196356128).
Almost surely, 2131030102121 is an apocalyptic number.
It is an amenable number.
131030102121 is a deficient number, since it is larger than the sum of its proper divisors (46540746903).
131030102121 is an equidigital number, since it uses as much as digits as its factorization.
131030102121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 716011551.
The product of its (nonzero) digits is 36, while the sum is 15.
Adding to 131030102121 its reverse (121201030131), we get a palindrome (252231132252).
The spelling of 131030102121 in words is "one hundred thirty-one billion, thirty million, one hundred two thousand, one hundred twenty-one".
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