Base | Representation |
---|---|
bin | 11101010000111001… |
… | …011010111101110101 |
3 | 10000002212001001001022 |
4 | 131100321122331311 |
5 | 1003323013013023 |
6 | 22233550310525 |
7 | 2161444413254 |
oct | 352071327565 |
9 | 100085031038 |
10 | 31422001013 |
11 | 1236499a487 |
12 | 610b1b8445 |
13 | 2c69b77a10 |
14 | 174124679b |
15 | c3d8b77c8 |
hex | 750e5af75 |
31422001013 has 16 divisors (see below), whose sum is σ = 35965937280. Its totient is φ = 27211546944.
The previous prime is 31422000989. The next prime is 31422001081. The reversal of 31422001013 is 31010022413.
It is a cyclic number.
It is not a de Polignac number, because 31422001013 - 218 = 31421738869 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 31422000982 and 31422001000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31422001213) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592106 + ... + 642987.
It is an arithmetic number, because the mean of its divisors is an integer number (2247871080).
Almost surely, 231422001013 is an apocalyptic number.
It is an amenable number.
31422001013 is a deficient number, since it is larger than the sum of its proper divisors (4543936267).
31422001013 is a wasteful number, since it uses less digits than its factorization.
31422001013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1235228.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 31422001013 its reverse (31010022413), we get a palindrome (62432023426).
The spelling of 31422001013 in words is "thirty-one billion, four hundred twenty-two million, one thousand, thirteen".
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