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18825230 = 253783613
BaseRepresentation
bin100011111010…
…0000000001110
31022102102100202
41013310000032
514304401410
61511253502
7316004024
oct107640016
938372322
1018825230
11a698746
12637a292
133b917b8
142700714
1519bcca5
hex11f400e

18825230 has 32 divisors (see below), whose sum is σ = 35277984. Its totient is φ = 7226496.

The previous prime is 18825227. The next prime is 18825241. The reversal of 18825230 is 3252881.

It is a junction number, because it is equal to n+sod(n) for n = 18825193 and 18825202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30404 + ... + 31016.

It is an arithmetic number, because the mean of its divisors is an integer number (1102437).

Almost surely, 218825230 is an apocalyptic number.

18825230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18825230 is a deficient number, since it is larger than the sum of its proper divisors (16452754).

18825230 is a wasteful number, since it uses less digits than its factorization.

18825230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18825230 is about 4338.8051350573. The cubic root of 18825230 is about 266.0194739544.

The spelling of 18825230 in words is "eighteen million, eight hundred twenty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 37 74 83 166 185 370 415 613 830 1226 3065 3071 6130 6142 15355 22681 30710 45362 50879 101758 113405 226810 254395 508790 1882523 3765046 9412615 18825230