Base | Representation |
---|---|
bin | 1110000110111001000010… |
… | …00010100101000000011001 |
3 | 11001211210001101200102021200 |
4 | 13003130201002211000121 |
5 | 13031240303343244001 |
6 | 145551452233224413 |
7 | 6351226262312532 |
oct | 703344102450031 |
9 | 131753041612250 |
10 | 31023103103001 |
11 | 9980907a271a9 |
12 | 359059a562109 |
13 | 1440609c55c29 |
14 | 793751c7d689 |
15 | 38beae919086 |
hex | 1c37210a5019 |
31023103103001 has 24 divisors (see below), whose sum is σ = 45121433053320. Its totient is φ = 20539351961856.
The previous prime is 31023103102921. The next prime is 31023103103011. The reversal of 31023103103001 is 10030130132013.
It is a happy number.
31023103103001 is a `hidden beast` number, since 3 + 10 + 2 + 310 + 310 + 30 + 0 + 1 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 163712025 + 31022939390976 = 12795^2 + 5569824^2 .
It is not a de Polignac number, because 31023103103001 - 230 = 31022029361177 is a prime.
It is a super-2 number, since 2×310231031030012 (a number of 28 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (31023103103011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19712146 + ... + 21227691.
It is an arithmetic number, because the mean of its divisors is an integer number (1880059710555).
Almost surely, 231023103103001 is an apocalyptic number.
It is an amenable number.
31023103103001 is a deficient number, since it is larger than the sum of its proper divisors (14098329950319).
31023103103001 is a wasteful number, since it uses less digits than its factorization.
31023103103001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40940425 (or 40940422 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 31023103103001 its reverse (10030130132013), we get a palindrome (41053233235014).
The spelling of 31023103103001 in words is "thirty-one trillion, twenty-three billion, one hundred three million, one hundred three thousand, one".
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