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18141314387973 = 37417791875337
BaseRepresentation
bin1000001111111110110101…
…00110011001000000000101
32101020021220101120100202220
410013333122212121000011
54334211402440403343
6102330001010522553
73551444453010000
oct407773246310005
971207811510686
1018141314387973
115864763035547
12204baa9596459
13a17945a1651a
1446a0897c4537
15216d6d1ad183
hex107fda999005

18141314387973 has 80 divisors (see below), whose sum is σ = 30256253210880. Its totient is φ = 9633165954048.

The previous prime is 18141314387957. The next prime is 18141314388019. The reversal of 18141314387973 is 37978341314181.

It is not a de Polignac number, because 18141314387973 - 24 = 18141314387957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18141314307973) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8735961 + ... + 10611297.

It is an arithmetic number, because the mean of its divisors is an integer number (378203165136).

Almost surely, 218141314387973 is an apocalyptic number.

It is an amenable number.

18141314387973 is a deficient number, since it is larger than the sum of its proper divisors (12114938822907).

18141314387973 is an equidigital number, since it uses as much as digits as its factorization.

18141314387973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875464 (or 1875443 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The spelling of 18141314387973 in words is "eighteen trillion, one hundred forty-one billion, three hundred fourteen million, three hundred eighty-seven thousand, nine hundred seventy-three".

Divisors: 1 3 7 17 21 49 51 79 119 147 237 343 357 553 833 1029 1343 1659 2401 2499 3871 4029 5831 7203 9401 11613 17493 27097 28203 40817 65807 81291 122451 189679 197421 460649 569037 1381947 1875337 3224543 5626011 9673629 13127359 31880729 39382077 91891513 95642187 148151623 223165103 275674539 444454869 643240591 669495309 1037061361 1562155721 1929721773 2518577591 3111184083 4502684137 4686467163 7259429527 7555732773 10935090047 13508052411 17630043137 21778288581 32805270141 50816006689 52890129411 76545630329 123410301959 152448020067 229636890987 355712046823 370230905877 863872113713 1067136140469 2591616341139 6047104795991 18141314387973