Base | Representation |
---|---|
bin | 100111010100010000… |
… | …111111101110000101 |
3 | 11000222002201111001000 |
4 | 213110100333232011 |
5 | 1142424234241012 |
6 | 31221013523513 |
7 | 3023102330220 |
oct | 472420775605 |
9 | 130862644030 |
10 | 42215930757 |
11 | 169a3879680 |
12 | 8222043599 |
13 | 3c9a1a10b0 |
14 | 20869d45b7 |
15 | 11712edddc |
hex | 9d443fb85 |
42215930757 has 128 divisors (see below), whose sum is σ = 84843601920. Its totient is φ = 20033464320.
The previous prime is 42215930741. The next prime is 42215930759. The reversal of 42215930757 is 75703951224.
It is a happy number.
42215930757 is a `hidden beast` number, since 4 + 2 + 2 + 1 + 593 + 0 + 7 + 57 = 666.
It is not a de Polignac number, because 42215930757 - 24 = 42215930741 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42215930759) by changing a digit.
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 127 ways as a sum of consecutive naturals, for example, 2613568 + ... + 2629670.
It is an arithmetic number, because the mean of its divisors is an integer number (662840640).
Almost surely, 242215930757 is an apocalyptic number.
It is an amenable number.
42215930757 is an abundant number, since it is smaller than the sum of its proper divisors (42627671163).
42215930757 is a wasteful number, since it uses less digits than its factorization.
42215930757 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16240 (or 16234 counting only the distinct ones).
The product of its (nonzero) digits is 529200, while the sum is 45.
The spelling of 42215930757 in words is "forty-two billion, two hundred fifteen million, nine hundred thirty thousand, seven hundred fifty-seven".
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