Base | Representation |
---|---|
bin | 100111110111001001… |
… | …111001111100111110 |
3 | 11002110220011000221210 |
4 | 213313021321330332 |
5 | 1200124111242221 |
6 | 31355043505250 |
7 | 3043440555252 |
oct | 476711717476 |
9 | 132426130853 |
10 | 42801274686 |
11 | 17174227195 |
12 | 8366088226 |
13 | 4061537a51 |
14 | 2100644262 |
15 | 11a78c4276 |
hex | 9f7279f3e |
42801274686 has 16 divisors (see below), whose sum is σ = 86115141504. Its totient is φ = 14181659544.
The previous prime is 42801274669. The next prime is 42801274687. The reversal of 42801274686 is 68647210824.
It is a super-2 number, since 2×428012746862 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42801274687) 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, 21356920 + ... + 21358923.
It is an arithmetic number, because the mean of its divisors is an integer number (5382196344).
Almost surely, 242801274686 is an apocalyptic number.
42801274686 is an abundant number, since it is smaller than the sum of its proper divisors (43313866818).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42801274686 is a wasteful number, since it uses less digits than its factorization.
42801274686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42716015.
The product of its (nonzero) digits is 1032192, while the sum is 48.
The spelling of 42801274686 in words is "forty-two billion, eight hundred one million, two hundred seventy-four thousand, six hundred eighty-six".
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