Base | Representation |
---|---|
bin | 11101000011110010… |
… | …111111000011010001 |
3 | 2222112112110111110110 |
4 | 131003302333003101 |
5 | 1002400231210001 |
6 | 22200055351533 |
7 | 2153135260164 |
oct | 350362770321 |
9 | 88475414413 |
10 | 31202210001 |
11 | 1226191a216 |
12 | 60696825a9 |
13 | 2c33481471 |
14 | 171dd91adb |
15 | c2944e3d6 |
hex | 743cbf0d1 |
31202210001 has 16 divisors (see below), whose sum is σ = 44976161600. Its totient is φ = 19174045248.
The previous prime is 31202209999. The next prime is 31202210029. The reversal of 31202210001 is 10001220213.
It is not a de Polignac number, because 31202210001 - 21 = 31202209999 is a prime.
It is a super-3 number, since 3×312022100013 (a number of 32 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (31202210051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7395286 + ... + 7399503.
It is an arithmetic number, because the mean of its divisors is an integer number (2811010100).
Almost surely, 231202210001 is an apocalyptic number.
It is an amenable number.
31202210001 is a deficient number, since it is larger than the sum of its proper divisors (13773951599).
31202210001 is a wasteful number, since it uses less digits than its factorization.
31202210001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14794848.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 31202210001 its reverse (10001220213), we get a palindrome (41203430214).
The spelling of 31202210001 in words is "thirty-one billion, two hundred two million, two hundred ten thousand, one".
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