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18868848 = 243537417
BaseRepresentation
bin100011111111…
…0101001110000
31022111122012020
41013332221300
514312300343
61512231440
7316245135
oct107765160
938448166
1018868848
11a718499
12639b580
133ba85cb
14271258c
1519cab83
hex11fea70

18868848 has 40 divisors (see below), whose sum is σ = 49670928. Its totient is φ = 6170112.

The previous prime is 18868831. The next prime is 18868859. The reversal of 18868848 is 84886881.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 18868848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165 + ... + 6252.

Almost surely, 218868848 is an apocalyptic number.

It is an amenable number.

18868848 is an abundant number, since it is smaller than the sum of its proper divisors (30802080).

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

18868848 is a wasteful number, since it uses less digits than its factorization.

18868848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481 (or 7475 counting only the distinct ones).

The product of its digits is 786432, while the sum is 51.

The square root of 18868848 is about 4343.8287259053. The cubic root of 18868848 is about 266.2247709128.

The spelling of 18868848 in words is "eighteen million, eight hundred sixty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 53 106 159 212 318 424 636 848 1272 2544 7417 14834 22251 29668 44502 59336 89004 118672 178008 356016 393101 786202 1179303 1572404 2358606 3144808 4717212 6289616 9434424 18868848