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18850989230 = 251885098923
BaseRepresentation
bin10001100011100110…
…110100010010101110
31210122202110110210022
4101203212310102232
5302101323123410
612354322042142
71235100523163
oct214346642256
953582413708
1018850989230
117aa398a247
1237a11a9352
131a15626bc8
14cab86a06a
15754e53455
hex4639b44ae

18850989230 has 8 divisors (see below), whose sum is σ = 33931780632. Its totient is φ = 7540395688.

The previous prime is 18850989229. The next prime is 18850989233. The reversal of 18850989230 is 3298905881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850989233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942549452 + ... + 942549471.

It is an arithmetic number, because the mean of its divisors is an integer number (4241472579).

Almost surely, 218850989230 is an apocalyptic number.

18850989230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18850989230 is a deficient number, since it is larger than the sum of its proper divisors (15080791402).

18850989230 is a wasteful number, since it uses less digits than its factorization.

18850989230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885098930.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 18850989230 in words is "eighteen billion, eight hundred fifty million, nine hundred eighty-nine thousand, two hundred thirty".

Divisors: 1 2 5 10 1885098923 3770197846 9425494615 18850989230