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18048472 = 2313173543
BaseRepresentation
bin100010011011…
…0010111011000
31020221221211221
41010312113120
514110022342
61442501424
7306260311
oct104662730
936857757
1018048472
11a2080a2
126064874
13397c090
14257b608
1518b7a67
hex11365d8

18048472 has 16 divisors (see below), whose sum is σ = 36444240. Its totient is φ = 8330016.

The previous prime is 18048467. The next prime is 18048521. The reversal of 18048472 is 27484081.

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, 86668 + ... + 86875.

It is an arithmetic number, because the mean of its divisors is an integer number (2277765).

Almost surely, 218048472 is an apocalyptic number.

It is an amenable number.

18048472 is an abundant number, since it is smaller than the sum of its proper divisors (18395768).

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

18048472 is a wasteful number, since it uses less digits than its factorization.

18048472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173562 (or 173558 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 18048472 is about 4248.3493265032. The cubic root of 18048472 is about 262.3091740856.

The spelling of 18048472 in words is "eighteen million, forty-eight thousand, four hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 173543 347086 694172 1388344 2256059 4512118 9024236 18048472