Base | Representation |
---|---|
bin | 11100111001000011… |
… | …101111110001101001 |
3 | 2222001222110122120200 |
4 | 130321003233301221 |
5 | 1002013121221010 |
6 | 22130142142413 |
7 | 2145520053411 |
oct | 347103576151 |
9 | 88058418520 |
10 | 31022054505 |
11 | 1217a160782 |
12 | 6019281a09 |
13 | 2c05054890 |
14 | 1704097641 |
15 | c18714cc0 |
hex | 7390efc69 |
31022054505 has 48 divisors (see below), whose sum is σ = 58182511296. Its totient is φ = 15199954560.
The previous prime is 31022054477. The next prime is 31022054507. The reversal of 31022054505 is 50545022013.
It is a happy number.
31022054505 is a `hidden beast` number, since 3 + 1 + 0 + 2 + 205 + 450 + 5 = 666.
It is not a de Polignac number, because 31022054505 - 210 = 31022053481 is a prime.
It is a super-2 number, since 2×310220545052 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (31022054507) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2227 + ... + 249096.
It is an arithmetic number, because the mean of its divisors is an integer number (1212135652).
Almost surely, 231022054505 is an apocalyptic number.
It is an amenable number.
31022054505 is a deficient number, since it is larger than the sum of its proper divisors (27160456791).
31022054505 is a wasteful number, since it uses less digits than its factorization.
31022054505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 251558 (or 251555 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 27.
Adding to 31022054505 its reverse (50545022013), we get a palindrome (81567076518).
The spelling of 31022054505 in words is "thirty-one billion, twenty-two million, fifty-four thousand, five hundred five".
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