Base | Representation |
---|---|
bin | 11010001101010100100… |
… | …111110001100111101111 |
3 | 20101011201112221210111122 |
4 | 122031110213301213233 |
5 | 214001432304310111 |
6 | 3455212324211155 |
7 | 244055505666122 |
oct | 32152447614757 |
9 | 6334645853448 |
10 | 1801011010031 |
11 | 634893843472 |
12 | 25106ab39abb |
13 | 100ab08388ac |
14 | 63252b843b9 |
15 | 31cad6b1cdb |
hex | 1a3549f19ef |
1801011010031 has 2 divisors, whose sum is σ = 1801011010032. Its totient is φ = 1801011010030.
The previous prime is 1801011009961. The next prime is 1801011010037. The reversal of 1801011010031 is 1300101101081.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1801011010031 - 214 = 1801010993647 is a prime.
It is a super-2 number, since 2×18010110100312 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1801011009991 and 1801011010009.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1801011010037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900505505015 + 900505505016.
It is an arithmetic number, because the mean of its divisors is an integer number (900505505016).
Almost surely, 21801011010031 is an apocalyptic number.
1801011010031 is a deficient number, since it is larger than the sum of its proper divisors (1).
1801011010031 is an equidigital number, since it uses as much as digits as its factorization.
1801011010031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24, while the sum is 17.
The spelling of 1801011010031 in words is "one trillion, eight hundred one billion, eleven million, ten thousand, thirty-one".
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