Base | Representation |
---|---|
bin | 11101001100011100… |
… | …111000110011101111 |
3 | 2222220122200112102221 |
4 | 131030130320303233 |
5 | 1003144414142312 |
6 | 22222323500211 |
7 | 2156550415216 |
oct | 351434706357 |
9 | 88818615387 |
10 | 31347412207 |
11 | 12326884841 |
12 | 60aa227667 |
13 | 2c57590627 |
14 | 173538c07d |
15 | c37082207 |
hex | 74c738cef |
31347412207 has 8 divisors (see below), whose sum is σ = 31522821120. Its totient is φ = 31172121240.
The previous prime is 31347412177. The next prime is 31347412211. The reversal of 31347412207 is 70221474313.
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-31347412207 is a prime.
It is a super-2 number, since 2×313474122072 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31347412507) 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, 533428 + ... + 589270.
It is an arithmetic number, because the mean of its divisors is an integer number (3940352640).
Almost surely, 231347412207 is an apocalyptic number.
31347412207 is a deficient number, since it is larger than the sum of its proper divisors (175408913).
31347412207 is a wasteful number, since it uses less digits than its factorization.
31347412207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58973.
The product of its (nonzero) digits is 28224, while the sum is 34.
The spelling of 31347412207 in words is "thirty-one billion, three hundred forty-seven million, four hundred twelve thousand, two hundred seven".
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