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14303797218 = 2323721477173
BaseRepresentation
bin11010101001001001…
…01001111111100010
31100220212010012000100
431110210221333202
5213243233002333
610323204003230
71014314161464
oct152444517742
940825105010
1014303797218
116080136617
122932390516
13146c539149
14999998134
1558ab42213
hex354929fe2

14303797218 has 24 divisors (see below), whose sum is σ = 31829171868. Its totient is φ = 4639069152.

The previous prime is 14303797213. The next prime is 14303797231. The reversal of 14303797218 is 81279730341.

It can be written as a sum of positive squares in 2 ways, for example, as 13779707769 + 524089449 = 117387^2 + 22893^2 .

It is a super-2 number, since 2×143037972182 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14303797213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10737921 + ... + 10739252.

Almost surely, 214303797218 is an apocalyptic number.

14303797218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14303797218 is an abundant number, since it is smaller than the sum of its proper divisors (17525374650).

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

14303797218 is a wasteful number, since it uses less digits than its factorization.

14303797218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21477218 (or 21477215 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 14303797218 in words is "fourteen billion, three hundred three million, seven hundred ninety-seven thousand, two hundred eighteen".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 21477173 42954346 64431519 128863038 193294557 386589114 794655401 1589310802 2383966203 4767932406 7151898609 14303797218