Base | Representation |
---|---|
bin | 11100010101100110… |
… | …010000011110000101 |
3 | 2220112111222220222110 |
4 | 130111212100132011 |
5 | 444303320342131 |
6 | 21551130451233 |
7 | 2125004160105 |
oct | 342546203605 |
9 | 86474886873 |
10 | 30427121541 |
11 | 119a4353843 |
12 | 5a91b93b19 |
13 | 2b3ba1143b |
14 | 168906d205 |
15 | bd1398646 |
hex | 715990785 |
30427121541 has 16 divisors (see below), whose sum is σ = 41143924224. Its totient is φ = 19999269744.
The previous prime is 30427121539. The next prime is 30427121579. The reversal of 30427121541 is 14512172403.
It is not a de Polignac number, because 30427121541 - 21 = 30427121539 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30427121499 and 30427121508.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30427121741) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146751 + ... + 287036.
It is an arithmetic number, because the mean of its divisors is an integer number (2571495264).
Almost surely, 230427121541 is an apocalyptic number.
It is an amenable number.
30427121541 is a deficient number, since it is larger than the sum of its proper divisors (10716802683).
30427121541 is a wasteful number, since it uses less digits than its factorization.
30427121541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 434120.
The product of its (nonzero) digits is 6720, while the sum is 30.
Adding to 30427121541 its reverse (14512172403), we get a palindrome (44939293944).
The spelling of 30427121541 in words is "thirty billion, four hundred twenty-seven million, one hundred twenty-one thousand, five hundred forty-one".
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