Base | Representation |
---|---|
bin | 1100111111000011011001… |
… | …01000010001010101101110 |
3 | 10202002210211200012221011211 |
4 | 12133201230220101111232 |
5 | 12220320124330024133 |
6 | 140421513351105034 |
7 | 6005004461303530 |
oct | 637415450212556 |
9 | 122083750187154 |
10 | 28554765079918 |
11 | 910a00a5148a0 |
12 | 325213107217a |
13 | 12c191a06169c |
14 | 70a0b523d850 |
15 | 347b957c4bcd |
hex | 19f86ca1156e |
28554765079918 has 64 divisors (see below), whose sum is σ = 54156435480576. Its totient is φ = 10967894028000.
The previous prime is 28554765079877. The next prime is 28554765079933. The reversal of 28554765079918 is 81997056745582.
It is a super-5 number, since 5×285547650799185 (a number of 68 digits) contains 55555 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212566353 + ... + 212700643.
It is an arithmetic number, because the mean of its divisors is an integer number (846194304384).
Almost surely, 228554765079918 is an apocalyptic number.
28554765079918 is a deficient number, since it is larger than the sum of its proper divisors (25601670400658).
28554765079918 is a wasteful number, since it uses less digits than its factorization.
28554765079918 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 153829.
The product of its (nonzero) digits is 1524096000, while the sum is 76.
The spelling of 28554765079918 in words is "twenty-eight trillion, five hundred fifty-four billion, seven hundred sixty-five million, seventy-nine thousand, nine hundred eighteen".
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