Base | Representation |
---|---|
bin | 1101000010111100010101… |
… | …01100010001000110001010 |
3 | 10202120120210212011120110110 |
4 | 12201132022230101012022 |
5 | 12230012332314231104 |
6 | 141003135235055150 |
7 | 6020445425446512 |
oct | 641361254210612 |
9 | 122516725146413 |
10 | 28688413430154 |
11 | 9160762526505 |
12 | 327400b7414b6 |
13 | 13013c8a4482a |
14 | 712753082842 |
15 | 34b3b8a9ae89 |
hex | 1a178ab1118a |
28688413430154 has 32 divisors (see below), whose sum is σ = 57442516992000. Its totient is φ = 9551857114800.
The previous prime is 28688413430147. The next prime is 28688413430203. The reversal of 28688413430154 is 45103431488682.
It is a junction number, because it is equal to n+sod(n) for n = 28688413430094 and 28688413430103.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127961847 + ... + 128185845.
It is an arithmetic number, because the mean of its divisors is an integer number (1795078656000).
Almost surely, 228688413430154 is an apocalyptic number.
28688413430154 is an abundant number, since it is smaller than the sum of its proper divisors (28754103561846).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28688413430154 is a wasteful number, since it uses less digits than its factorization.
28688413430154 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 248346.
The product of its (nonzero) digits is 17694720, while the sum is 57.
The spelling of 28688413430154 in words is "twenty-eight trillion, six hundred eighty-eight billion, four hundred thirteen million, four hundred thirty thousand, one hundred fifty-four".
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