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218737740104 = 231317091230689
BaseRepresentation
bin1100101110110111001…
…0010000100101001000
3202220121012122111200122
43023231302100211020
512040433330140404
6244253044522412
721542345053622
oct3135562204510
9686535574618
10218737740104
118484782a724
12364869b0408
131781c343b60
14a8308abc12
155a534a73be
hex32edc90948

218737740104 has 32 divisors (see below), whose sum is σ = 441940779000. Its totient is φ = 100896724992.

The previous prime is 218737740101. The next prime is 218737740131. The reversal of 218737740104 is 401047737812.

It can be written as a sum of positive squares in 4 ways, for example, as 183442603204 + 35295136900 = 428302^2 + 187870^2 .

It is not an unprimeable number, because it can be changed into a prime (218737740101) 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, 437609 + ... + 793080.

Almost surely, 2218737740104 is an apocalyptic number.

It is an amenable number.

218737740104 is an abundant number, since it is smaller than the sum of its proper divisors (223203038896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218737740104 is a wasteful number, since it uses less digits than its factorization.

218737740104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232417 (or 1232413 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 218737740104 in words is "two hundred eighteen billion, seven hundred thirty-seven million, seven hundred forty thousand, one hundred four".

Divisors: 1 2 4 8 13 26 52 104 1709 3418 6836 13672 22217 44434 88868 177736 1230689 2461378 4922756 9845512 15998957 31997914 63995828 127991656 2103247501 4206495002 8412990004 16825980008 27342217513 54684435026 109368870052 218737740104