Base | Representation |
---|---|
bin | 1110000111000101111100… |
… | …00110000010011010111001 |
3 | 11001212102221100111122222222 |
4 | 13003202332012002122321 |
5 | 13031344001422000441 |
6 | 145555000025053425 |
7 | 6351563100416321 |
oct | 703427606023271 |
9 | 131772840448888 |
10 | 31030033000121 |
11 | 998384374a501 |
12 | 35919b3327275 |
13 | 144117288557c |
14 | 793c0c38c281 |
15 | 38c267ed6d4b |
hex | 1c38be1826b9 |
31030033000121 has 8 divisors (see below), whose sum is σ = 31616271013824. Its totient is φ = 30443823345520.
The previous prime is 31030033000079. The next prime is 31030033000123. The reversal of 31030033000121 is 12100033003013.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31030033000121 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31030033000121.
It is not an unprimeable number, because it can be changed into a prime (31030033000123) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4874261 + ... + 9263826.
It is an arithmetic number, because the mean of its divisors is an integer number (3952033876728).
Almost surely, 231030033000121 is an apocalyptic number.
It is an amenable number.
31030033000121 is a deficient number, since it is larger than the sum of its proper divisors (586238013703).
31030033000121 is a wasteful number, since it uses less digits than its factorization.
31030033000121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14179551.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 31030033000121 its reverse (12100033003013), we get a palindrome (43130066003134).
The spelling of 31030033000121 in words is "thirty-one trillion, thirty billion, thirty-three million, one hundred twenty-one", and thus it is an aban number.
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