Base | Representation |
---|---|
bin | 1011110000100000100… |
… | …0111001010010001111 |
3 | 201022101201122211202220 |
4 | 2330020020321102033 |
5 | 11302144000344211 |
6 | 232444133150423 |
7 | 20410514530020 |
oct | 2741010712217 |
9 | 638351584686 |
10 | 202000012431 |
11 | 78738817138 |
12 | 3319548b413 |
13 | 1608279c099 |
14 | 9ac3980c47 |
15 | 53c3d3a806 |
hex | 2f0823948f |
202000012431 has 32 divisors (see below), whose sum is σ = 310231104000. Its totient is φ = 114522685056.
The previous prime is 202000012421. The next prime is 202000012463. The reversal of 202000012431 is 134210000202.
It is not a de Polignac number, because 202000012431 - 26 = 202000012367 is a prime.
It is a super-2 number, since 2×2020000124312 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 202000012431.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202000012421) 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 31 ways as a sum of consecutive naturals, for example, 2186820 + ... + 2277318.
It is an arithmetic number, because the mean of its divisors is an integer number (9694722000).
Almost surely, 2202000012431 is an apocalyptic number.
202000012431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
202000012431 is a deficient number, since it is larger than the sum of its proper divisors (108231091569).
202000012431 is a wasteful number, since it uses less digits than its factorization.
202000012431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 91343.
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 202000012431 its reverse (134210000202), we get a palindrome (336210012633).
The spelling of 202000012431 in words is "two hundred two billion, twelve thousand, four hundred thirty-one".
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