Base | Representation |
---|---|
bin | 11100011000001100… |
… | …001100100100011111 |
3 | 2220122112211221122222 |
4 | 130120030030210133 |
5 | 444400434341341 |
6 | 21555323055555 |
7 | 2126043003053 |
oct | 343014144437 |
9 | 86575757588 |
10 | 30470621471 |
11 | 11a169649a4 |
12 | 5aa46715bb |
13 | 2b47a32044 |
14 | 1690b53c63 |
15 | bd50dc44b |
hex | 71830c91f |
30470621471 has 2 divisors, whose sum is σ = 30470621472. Its totient is φ = 30470621470.
The previous prime is 30470621459. The next prime is 30470621501. The reversal of 30470621471 is 17412607403.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30470621471 is a prime.
It is a super-3 number, since 3×304706214713 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30470671471) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15235310735 + 15235310736.
It is an arithmetic number, because the mean of its divisors is an integer number (15235310736).
Almost surely, 230470621471 is an apocalyptic number.
30470621471 is a deficient number, since it is larger than the sum of its proper divisors (1).
30470621471 is an equidigital number, since it uses as much as digits as its factorization.
30470621471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 28224, while the sum is 35.
The spelling of 30470621471 in words is "thirty billion, four hundred seventy million, six hundred twenty-one thousand, four hundred seventy-one".
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