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18382120910 = 2517532040191
BaseRepresentation
bin10001000111101010…
…001110011111001110
31202110002012111100222
4101013222032133032
5300121310332120
612240012351342
71220345310146
oct210752163716
952402174328
1018382120910
11788325656a
123690175552
13196c451c2a
14c65499926
15728bd9525
hex447a8e7ce

18382120910 has 32 divisors (see below), whose sum is σ = 35695199232. Its totient is φ = 6789752320.

The previous prime is 18382120907. The next prime is 18382120919. The reversal of 18382120910 is 1902128381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18382120919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011086 + ... + 1029105.

It is an arithmetic number, because the mean of its divisors is an integer number (1115474976).

Almost surely, 218382120910 is an apocalyptic number.

18382120910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18382120910 is a deficient number, since it is larger than the sum of its proper divisors (17313078322).

18382120910 is a wasteful number, since it uses less digits than its factorization.

18382120910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040268.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 18382120910 in words is "eighteen billion, three hundred eighty-two million, one hundred twenty thousand, nine hundred ten".

Divisors: 1 2 5 10 17 34 53 85 106 170 265 530 901 1802 4505 9010 2040191 4080382 10200955 20401910 34683247 69366494 108130123 173416235 216260246 346832470 540650615 1081301230 1838212091 3676424182 9191060455 18382120910