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18080950 = 252536823
BaseRepresentation
bin100010011111…
…0010010110110
31021000121101211
41010332102312
514112042300
61443312034
7306454066
oct104762266
937017354
1018080950
11a22a538
12607b61a
133990ab4
1425893a6
1518c24ba
hex113e4b6

18080950 has 24 divisors (see below), whose sum is σ = 34270128. Its totient is φ = 7094880.

The previous prime is 18080939. The next prime is 18080957. The reversal of 18080950 is 5908081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080957) 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 11 ways as a sum of consecutive naturals, for example, 762 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (1427922).

Almost surely, 218080950 is an apocalyptic number.

18080950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18080950 is a deficient number, since it is larger than the sum of its proper divisors (16189178).

18080950 is a wasteful number, since it uses less digits than its factorization.

18080950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 18080950 is about 4252.1700342296. The cubic root of 18080950 is about 262.4664204968.

The spelling of 18080950 in words is "eighteen million, eighty thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 53 106 265 530 1325 2650 6823 13646 34115 68230 170575 341150 361619 723238 1808095 3616190 9040475 18080950