Base | Representation |
---|---|
bin | 11011111110111101… |
… | …111010010001111111 |
3 | 2212120001120102020200 |
4 | 123332331322101333 |
5 | 443014121234033 |
6 | 21445325014543 |
7 | 2112414035541 |
oct | 337675722177 |
9 | 85501512220 |
10 | 30047446143 |
11 | 1181a000020 |
12 | 59a69b4453 |
13 | 2aab167c40 |
14 | 1650879691 |
15 | bacd9c013 |
hex | 6fef7a47f |
30047446143 has 48 divisors (see below), whose sum is σ = 52367786016. Its totient is φ = 16355416320.
The previous prime is 30047446141. The next prime is 30047446171. The reversal of 30047446143 is 34164474003.
30047446143 is a `hidden beast` number, since 3 + 0 + 0 + 474 + 46 + 143 = 666.
It is not a de Polignac number, because 30047446143 - 21 = 30047446141 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30047446098 and 30047446107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30047446141) 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, 267880 + ... + 363117.
It is an arithmetic number, because the mean of its divisors is an integer number (1090995542).
Almost surely, 230047446143 is an apocalyptic number.
30047446143 is a gapful number since it is divisible by the number (33) formed by its first and last digit.
30047446143 is a deficient number, since it is larger than the sum of its proper divisors (22320339873).
30047446143 is a wasteful number, since it uses less digits than its factorization.
30047446143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 631064 (or 631061 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 36.
The spelling of 30047446143 in words is "thirty billion, forty-seven million, four hundred forty-six thousand, one hundred forty-three".
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