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890006255 = 51091633039
BaseRepresentation
bin110101000011000…
…110101011101111
32022000201000001122
4311003012223233
53310320200010
6224151531155
731024633265
oct6503065357
92260630048
10890006255
11417426966
1220a089abb
13112507928
14862b8435
1553205855
hex350c6aef

890006255 has 8 divisors (see below), whose sum is σ = 1077806400. Its totient is φ = 705472416.

The previous prime is 890006239. The next prime is 890006281. The reversal of 890006255 is 552600098.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 890006255 - 24 = 890006239 is a prime.

It is a super-2 number, since 2×8900062552 = 1584222267878250050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815975 + ... + 817064.

It is an arithmetic number, because the mean of its divisors is an integer number (134725800).

Almost surely, 2890006255 is an apocalyptic number.

890006255 is a deficient number, since it is larger than the sum of its proper divisors (187800145).

890006255 is a wasteful number, since it uses less digits than its factorization.

890006255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633153.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 890006255 is about 29832.9726142066. The cubic root of 890006255 is about 961.9024250427.

The spelling of 890006255 in words is "eight hundred ninety million, six thousand, two hundred fifty-five".

Divisors: 1 5 109 545 1633039 8165195 178001251 890006255