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18849308 = 2243109589
BaseRepresentation
bin100011111100…
…1111000011100
31022110122101112
41013321320130
514311134213
61512001152
7316134152
oct107717034
938418345
1018849308
11a704845
1263901b8
133b9c74a
1427093d2
1519c4ea8
hex11f9e1c

18849308 has 12 divisors (see below), whose sum is σ = 33753720. Its totient is φ = 9205392.

The previous prime is 18849307. The next prime is 18849319. The reversal of 18849308 is 80394881.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18849307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54623 + ... + 54966.

It is an arithmetic number, because the mean of its divisors is an integer number (2812810).

Almost surely, 218849308 is an apocalyptic number.

It is an amenable number.

18849308 is a deficient number, since it is larger than the sum of its proper divisors (14904412).

18849308 is a wasteful number, since it uses less digits than its factorization.

18849308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109636 (or 109634 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 18849308 is about 4341.5789754420. The cubic root of 18849308 is about 266.1328411044.

The spelling of 18849308 in words is "eighteen million, eight hundred forty-nine thousand, three hundred eight".

Divisors: 1 2 4 43 86 172 109589 219178 438356 4712327 9424654 18849308