Base | Representation |
---|---|
bin | 110000010100110… |
… | …001000001101001 |
3 | 2002111120100222220 |
4 | 300110301001221 |
5 | 3130023000212 |
6 | 212241104253 |
7 | 26043155535 |
oct | 6024610151 |
9 | 2074510886 |
10 | 810750057 |
11 | 386713577 |
12 | 1a7628089 |
13 | cbc77c80 |
14 | 79966bc5 |
15 | 4b29c38c |
hex | 30531069 |
810750057 has 16 divisors (see below), whose sum is σ = 1165566528. Its totient is φ = 498317760.
The previous prime is 810749999. The next prime is 810750091. The reversal of 810750057 is 750057018.
It is not a de Polignac number, because 810750057 - 218 = 810487913 is a prime.
It is not an unprimeable number, because it can be changed into a prime (810700057) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21082 + ... + 45452.
It is an arithmetic number, because the mean of its divisors is an integer number (72847908).
Almost surely, 2810750057 is an apocalyptic number.
It is an amenable number.
810750057 is a deficient number, since it is larger than the sum of its proper divisors (354816471).
810750057 is a wasteful number, since it uses less digits than its factorization.
810750057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25240.
The product of its (nonzero) digits is 9800, while the sum is 33.
The square root of 810750057 is about 28473.6730507323. The cubic root of 810750057 is about 932.4573915992.
The spelling of 810750057 in words is "eight hundred ten million, seven hundred fifty thousand, fifty-seven".
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