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18982948 = 22171312131
BaseRepresentation
bin100100001101…
…0100000100100
31022201102201011
41020122200210
514324423243
61514512004
7320231605
oct110324044
938642634
1018982948
11a796196
126435604
133c1851a
142741dac
1519ee89d
hex121a824

18982948 has 24 divisors (see below), whose sum is σ = 35459424. Its totient is φ = 8860800.

The previous prime is 18982937. The next prime is 18982949. The reversal of 18982948 is 84928981.

It is not an unprimeable number, because it can be changed into a prime (18982949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7843 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (1477476).

Almost surely, 218982948 is an apocalyptic number.

It is an amenable number.

18982948 is a deficient number, since it is larger than the sum of its proper divisors (16476476).

18982948 is a wasteful number, since it uses less digits than its factorization.

18982948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283 (or 2281 counting only the distinct ones).

The product of its digits is 331776, while the sum is 49.

The square root of 18982948 is about 4356.9425059323. The cubic root of 18982948 is about 266.7603136373.

The spelling of 18982948 in words is "eighteen million, nine hundred eighty-two thousand, nine hundred forty-eight".

Divisors: 1 2 4 17 34 68 131 262 524 2131 2227 4262 4454 8524 8908 36227 72454 144908 279161 558322 1116644 4745737 9491474 18982948