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18482417789 = 111988432621
BaseRepresentation
bin10001001101101000…
…110101000001111101
31202201001221002211012
4101031220311001331
5300322444332124
612253554205005
71223003646653
oct211550650175
952631832735
1018482417789
117924930050
1236b9883765
13198716a8b4
14c74926dd3
157328ebe0e
hex44da3507d

18482417789 has 8 divisors (see below), whose sum is σ = 21223829280. Its totient is φ = 15917871600.

The previous prime is 18482417749. The next prime is 18482417797. The reversal of 18482417789 is 98771428481.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18482417789 - 212 = 18482413693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18482417749) 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 7 ways as a sum of consecutive naturals, for example, 44216102 + ... + 44216519.

It is an arithmetic number, because the mean of its divisors is an integer number (2652978660).

Almost surely, 218482417789 is an apocalyptic number.

18482417789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18482417789 is a deficient number, since it is larger than the sum of its proper divisors (2741411491).

18482417789 is a wasteful number, since it uses less digits than its factorization.

18482417789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88432651.

The product of its digits is 7225344, while the sum is 59.

The spelling of 18482417789 in words is "eighteen billion, four hundred eighty-two million, four hundred seventeen thousand, seven hundred eighty-nine".

Divisors: 1 11 19 209 88432621 972758831 1680219799 18482417789