Base | Representation |
---|---|
bin | 1101110011011111001011… |
… | …01100010110010001110111 |
3 | 10222111001010211122000100120 |
4 | 12321233211230112101313 |
5 | 12434324340144121022 |
6 | 144321310515543023 |
7 | 6252114403146105 |
oct | 671574554262167 |
9 | 128431124560316 |
10 | 30356387488887 |
11 | 9744087391339 |
12 | 34a33308baa73 |
13 | 13c27974573a5 |
14 | 76d385296c75 |
15 | 37998c9a6d5c |
hex | 1b9be5b16477 |
30356387488887 has 8 divisors (see below), whose sum is σ = 40475349907200. Its totient is φ = 20237508364920.
The previous prime is 30356387488873. The next prime is 30356387488951. The reversal of 30356387488887 is 78888478365303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30356387488887 - 220 = 30356386440311 is a prime.
It is a super-2 number, since 2×303563874888872 (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 (30356387488837) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19968189 + ... + 21434582.
It is an arithmetic number, because the mean of its divisors is an integer number (5059418738400).
Almost surely, 230356387488887 is an apocalyptic number.
30356387488887 is a deficient number, since it is larger than the sum of its proper divisors (10118962418313).
30356387488887 is a wasteful number, since it uses less digits than its factorization.
30356387488887 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41647173.
The product of its (nonzero) digits is 5202247680, while the sum is 78.
The spelling of 30356387488887 in words is "thirty trillion, three hundred fifty-six billion, three hundred eighty-seven million, four hundred eighty-eight thousand, eight hundred eighty-seven".
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