Base | Representation |
---|---|
bin | 11100111100000010… |
… | …010111111001110001 |
3 | 2222012110111110220010 |
4 | 130330002113321301 |
5 | 1002113414314400 |
6 | 22135125205133 |
7 | 2146664602512 |
oct | 347402277161 |
9 | 88173443803 |
10 | 31072026225 |
11 | 121a5392219 |
12 | 6031b607a9 |
13 | 2c12500146 |
14 | 170a984a09 |
15 | c1ccd6450 |
hex | 73c097e71 |
31072026225 has 12 divisors (see below), whose sum is σ = 51372416816. Its totient is φ = 16571747280.
The previous prime is 31072026211. The next prime is 31072026253. The reversal of 31072026225 is 52262027013.
It is not a de Polignac number, because 31072026225 - 28 = 31072025969 is a prime.
It is a super-3 number, since 3×310720262253 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31072026192 and 31072026201.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207146767 + ... + 207146916.
Almost surely, 231072026225 is an apocalyptic number.
It is an amenable number.
31072026225 is a deficient number, since it is larger than the sum of its proper divisors (20300390591).
31072026225 is a wasteful number, since it uses less digits than its factorization.
31072026225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 414293696 (or 414293691 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 30.
The spelling of 31072026225 in words is "thirty-one billion, seventy-two million, twenty-six thousand, two hundred twenty-five".
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