Base | Representation |
---|---|
bin | 1101111111011000101111… |
… | …01000001001100010001111 |
3 | 11000221010110222012101200000 |
4 | 12333230113220021202033 |
5 | 13013024211232021111 |
6 | 145233205345135343 |
7 | 6323500334644503 |
oct | 677542750114217 |
9 | 130833428171600 |
10 | 30765247142031 |
11 | 9891516a66226 |
12 | 354a61702a553 |
13 | 14221c544682c |
14 | 78508dd7a303 |
15 | 38541c0a7c56 |
hex | 1bfb17a0988f |
30765247142031 has 48 divisors (see below), whose sum is σ = 46203171006720. Its totient is φ = 20457392788800.
The previous prime is 30765247141997. The next prime is 30765247142039. The reversal of 30765247142031 is 13024174256703.
It is a happy number.
30765247142031 is a `hidden beast` number, since 3 + 0 + 7 + 6 + 524 + 71 + 4 + 20 + 31 = 666.
It is not a de Polignac number, because 30765247142031 - 27 = 30765247141903 is a prime.
It is a super-2 number, since 2×307652471420312 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30765247142039) 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, 1058556406 + ... + 1058585468.
It is an arithmetic number, because the mean of its divisors is an integer number (962566062640).
Almost surely, 230765247142031 is an apocalyptic number.
30765247142031 is a deficient number, since it is larger than the sum of its proper divisors (15437923864689).
30765247142031 is a wasteful number, since it uses less digits than its factorization.
30765247142031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40138 (or 40126 counting only the distinct ones).
The product of its (nonzero) digits is 846720, while the sum is 45.
The spelling of 30765247142031 in words is "thirty trillion, seven hundred sixty-five billion, two hundred forty-seven million, one hundred forty-two thousand, thirty-one".
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