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18948056 = 2313991693
BaseRepresentation
bin100100001000…
…1111111011000
31022122122211212
41020101333120
514322314211
61514042252
7320025101
oct110217730
938578755
1018948056
11a771a56
126419388
133c0568a
1427333a8
1519e438b
hex1211fd8

18948056 has 16 divisors (see below), whose sum is σ = 35574000. Its totient is φ = 9461664.

The previous prime is 18948043. The next prime is 18948089. The reversal of 18948056 is 65084981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10346 + ... + 12038.

It is an arithmetic number, because the mean of its divisors is an integer number (2223375).

Almost surely, 218948056 is an apocalyptic number.

It is an amenable number.

18948056 is a deficient number, since it is larger than the sum of its proper divisors (16625944).

18948056 is a wasteful number, since it uses less digits than its factorization.

18948056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 18948056 is about 4352.9364801247. The cubic root of 18948056 is about 266.5967719596.

The spelling of 18948056 in words is "eighteen million, nine hundred forty-eight thousand, fifty-six".

Divisors: 1 2 4 8 1399 1693 2798 3386 5596 6772 11192 13544 2368507 4737014 9474028 18948056