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18119608 = 2313592953
BaseRepresentation
bin100010100011…
…1101110111000
31021002120102121
41011013232320
514114311413
61444211024
7310004563
oct105075670
937076377
1018119608
11a256591
126099a74
1339a5580
1425994da
1518cdb8d
hex1147bb8

18119608 has 32 divisors (see below), whose sum is σ = 37220400. Its totient is φ = 8218368.

The previous prime is 18119579. The next prime is 18119609. The reversal of 18119608 is 80691181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18119609) 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 7 ways as a sum of consecutive naturals, for example, 4660 + ... + 7612.

Almost surely, 218119608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18119608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18610200).

18119608 is an abundant number, since it is smaller than the sum of its proper divisors (19100792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18119608 is a wasteful number, since it uses less digits than its factorization.

18119608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 18119608 is about 4256.7132860929. The cubic root of 18119608 is about 262.6533429071.

The spelling of 18119608 in words is "eighteen million, one hundred nineteen thousand, six hundred eight".

Divisors: 1 2 4 8 13 26 52 59 104 118 236 472 767 1534 2953 3068 5906 6136 11812 23624 38389 76778 153556 174227 307112 348454 696908 1393816 2264951 4529902 9059804 18119608