Base | Representation |
---|---|
bin | 1110000110100001110111… |
… | …1111100000010000111100 |
3 | 2000220021222110112112012020 |
4 | 3201220131333200100330 |
5 | 4013014411243000202 |
6 | 52551015211040140 |
7 | 3160136441655423 |
oct | 341503577402074 |
9 | 60807873475166 |
10 | 15505335125052 |
11 | 4a38859500433 |
12 | 18a5055440050 |
13 | 8861ba774886 |
14 | 3b86684b42ba |
15 | 1bd4e184a5bc |
hex | e1a1dfe043c |
15505335125052 has 48 divisors (see below), whose sum is σ = 36367996547232. Its totient is φ = 5141464104960.
The previous prime is 15505335125029. The next prime is 15505335125053. The reversal of 15505335125052 is 25052153350551.
15505335125052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 15505335124995 and 15505335125013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15505335125053) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66252802 + ... + 66486422.
It is an arithmetic number, because the mean of its divisors is an integer number (757666594734).
Almost surely, 215505335125052 is an apocalyptic number.
15505335125052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
15505335125052 is an abundant number, since it is smaller than the sum of its proper divisors (20862661422180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15505335125052 is a wasteful number, since it uses less digits than its factorization.
15505335125052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 262478 (or 262476 counting only the distinct ones).
The product of its (nonzero) digits is 562500, while the sum is 42.
The spelling of 15505335125052 in words is "fifteen trillion, five hundred five billion, three hundred thirty-five million, one hundred twenty-five thousand, fifty-two".
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