Base | Representation |
---|---|
bin | 11101001010001111… |
… | …110011111100110001 |
3 | 2222211002002122101121 |
4 | 131022033303330301 |
5 | 1003110432230001 |
6 | 22214523102241 |
7 | 2155621156324 |
oct | 351217637461 |
9 | 88732078347 |
10 | 31310430001 |
11 | 12307a15534 |
12 | 6099971981 |
13 | 2c4ca12576 |
14 | 17304c27bb |
15 | c33bc96a1 |
hex | 74a3f3f31 |
31310430001 has 4 divisors (see below), whose sum is σ = 32320443904. Its totient is φ = 30300416100.
The previous prime is 31310429977. The next prime is 31310430007. The reversal of 31310430001 is 10003401313.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10003401313 = 53 ⋅188743421.
It is a cyclic number.
It is not a de Polignac number, because 31310430001 - 225 = 31276875569 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31310430007) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505006905 + ... + 505006966.
It is an arithmetic number, because the mean of its divisors is an integer number (8080110976).
Almost surely, 231310430001 is an apocalyptic number.
31310430001 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
31310430001 is a deficient number, since it is larger than the sum of its proper divisors (1010013903).
31310430001 is a wasteful number, since it uses less digits than its factorization.
31310430001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1010013902.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 31310430001 its reverse (10003401313), we get a palindrome (41313831314).
The spelling of 31310430001 in words is "thirty-one billion, three hundred ten million, four hundred thirty thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.062 sec. • engine limits •