Base | Representation |
---|---|
bin | 11101001001101000… |
… | …001001101100111100 |
3 | 2222210100112102212002 |
4 | 131021220021230330 |
5 | 1003100302031330 |
6 | 22213512201432 |
7 | 2155433615342 |
oct | 351150115474 |
9 | 88710472762 |
10 | 31300033340 |
11 | 12302064354 |
12 | 6096399278 |
13 | 2c4a8122b4 |
14 | 172cd77992 |
15 | c32d23e45 |
hex | 749a09b3c |
31300033340 has 48 divisors (see below), whose sum is σ = 67569163200. Its totient is φ = 12174543360.
The previous prime is 31300033313. The next prime is 31300033367. The reversal of 31300033340 is 4333000313.
It is an interprime number because it is at equal distance from previous prime (31300033313) and next prime (31300033367).
It is a super-2 number, since 2×313000333402 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 47315 + ... + 254634.
It is an arithmetic number, because the mean of its divisors is an integer number (1407690900).
Almost surely, 231300033340 is an apocalyptic number.
It is an amenable number.
31300033340 is an abundant number, since it is smaller than the sum of its proper divisors (36269129860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31300033340 is a wasteful number, since it uses less digits than its factorization.
31300033340 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 302102 (or 302100 counting only the distinct ones).
The product of its (nonzero) digits is 972, while the sum is 20.
Adding to 31300033340 its reverse (4333000313), we get a palindrome (35633033653).
The spelling of 31300033340 in words is "thirty-one billion, three hundred million, thirty-three thousand, three hundred forty".
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