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1670226081 = 31724371631
BaseRepresentation
bin110001110001101…
…1010000010100001
311022101211021110020
41203203122002201
511410034213311
6433422424053
756250454536
oct14343320241
94271737406
101670226081
11787887637
123a7432029
13208053474
1411bb74d8d
159b971c06
hex638da0a1

1670226081 has 48 divisors (see below), whose sum is σ = 2458672128. Its totient is φ = 1007596800.

The previous prime is 1670226071. The next prime is 1670226101. The reversal of 1670226081 is 1806220761.

It is not a de Polignac number, because 1670226081 - 210 = 1670225057 is a prime.

It is a super-2 number, since 2×16702260812 = 5579310323305237122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1670226001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2646636 + ... + 2647266.

It is an arithmetic number, because the mean of its divisors is an integer number (51222336).

Almost surely, 21670226081 is an apocalyptic number.

It is an amenable number.

1670226081 is a deficient number, since it is larger than the sum of its proper divisors (788446047).

1670226081 is a wasteful number, since it uses less digits than its factorization.

1670226081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1670226081 is about 40868.3995404763. The cubic root of 1670226081 is about 1186.4745318251.

The spelling of 1670226081 in words is "one billion, six hundred seventy million, two hundred twenty-six thousand, eighty-one".

Divisors: 1 3 17 43 51 71 129 213 289 631 731 867 1207 1893 2193 3053 3621 9159 10727 12427 20519 27133 32181 37281 44801 51901 61557 81399 134403 155703 182359 461261 547077 761617 882317 1383783 1926443 2284851 2646951 5779329 7841437 12947489 23524311 32749531 38842467 98248593 556742027 1670226081