Base | Representation |
---|---|
bin | 11101001010101010000… |
… | …11011100010000110000 |
3 | 10112210201212012111221212 |
4 | 32211111003130100300 |
5 | 112404403003024040 |
6 | 2044214445335252 |
7 | 132255214246526 |
oct | 16452503342060 |
9 | 3483655174855 |
10 | 1002154345520 |
11 | 357014002639 |
12 | 142283567528 |
13 | 7366c7039c3 |
14 | 3670c5dc316 |
15 | 1b105965d65 |
hex | e9550dc430 |
1002154345520 has 40 divisors (see below), whose sum is σ = 2352630317856. Its totient is φ = 396969873408.
The previous prime is 1002154345499. The next prime is 1002154345529. The reversal of 1002154345520 is 255434512001.
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (1002154345529) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60802097 + ... + 60818576.
Almost surely, 21002154345520 is an apocalyptic number.
1002154345520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1002154345520 is an abundant number, since it is smaller than the sum of its proper divisors (1350475972336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1002154345520 is a wasteful number, since it uses less digits than its factorization.
1002154345520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 121620789 (or 121620783 counting only the distinct ones).
The product of its (nonzero) digits is 24000, while the sum is 32.
Adding to 1002154345520 its reverse (255434512001), we get a palindrome (1257588857521).
The spelling of 1002154345520 in words is "one trillion, two billion, one hundred fifty-four million, three hundred forty-five thousand, five hundred twenty".
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