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18882056 = 2319711981
BaseRepresentation
bin100100000000…
…1111000001000
31022112022022102
41020001320020
514313211211
61512412532
7316331504
oct110017010
938468272
1018882056
11a727406
1263a7148
133bb161b
142717304
1519cea3b
hex1201e08

18882056 has 16 divisors (see below), whose sum is σ = 35586540. Its totient is φ = 9392320.

The previous prime is 18882049. The next prime is 18882113. The reversal of 18882056 is 65028881.

It can be written as a sum of positive squares in 2 ways, for example, as 12460900 + 6421156 = 3530^2 + 2534^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4415 + ... + 7566.

Almost surely, 218882056 is an apocalyptic number.

It is an amenable number.

18882056 is a deficient number, since it is larger than the sum of its proper divisors (16704484).

18882056 is a wasteful number, since it uses less digits than its factorization.

18882056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12184 (or 12180 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 18882056 is about 4345.3487777162. The cubic root of 18882056 is about 266.2868746271.

The spelling of 18882056 in words is "eighteen million, eight hundred eighty-two thousand, fifty-six".

Divisors: 1 2 4 8 197 394 788 1576 11981 23962 47924 95848 2360257 4720514 9441028 18882056