Base | Representation |
---|---|
bin | 11101000111110110… |
… | …010111110010001001 |
3 | 2222201021102002021001 |
4 | 131013312113302021 |
5 | 1003020133102401 |
6 | 22210525015001 |
7 | 2154622241044 |
oct | 350766276211 |
9 | 88637362231 |
10 | 31270206601 |
11 | 12297242057 |
12 | 60883b4461 |
13 | 2c4459b13a |
14 | 1729011c5b |
15 | c303d1601 |
hex | 747d97c89 |
31270206601 has 4 divisors (see below), whose sum is σ = 31997420752. Its totient is φ = 30542992452.
The previous prime is 31270206599. The next prime is 31270206613. The reversal of 31270206601 is 10660207213.
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.
It is a cyclic number.
It is not a de Polignac number, because 31270206601 - 21 = 31270206599 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 31270206601.
It is not an unprimeable number, because it can be changed into a prime (31270206901) 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, 363607011 + ... + 363607096.
It is an arithmetic number, because the mean of its divisors is an integer number (7999355188).
Almost surely, 231270206601 is an apocalyptic number.
It is an amenable number.
31270206601 is a deficient number, since it is larger than the sum of its proper divisors (727214151).
31270206601 is an equidigital number, since it uses as much as digits as its factorization.
31270206601 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 727214150.
The product of its (nonzero) digits is 3024, while the sum is 28.
The spelling of 31270206601 in words is "thirty-one billion, two hundred seventy million, two hundred six thousand, six hundred one".
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