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14145131 = 7111321087
BaseRepresentation
bin110101111101…
…011001101011
3222121122110202
4311331121223
512110121011
61223102415
7231142310
oct65753153
928548422
1014145131
117a914a0
1248a1a0b
132c13500
141c42d07
15139623b
hexd7d66b

14145131 has 24 divisors (see below), whose sum is σ = 19113984. Its totient is φ = 10164960.

The previous prime is 14145091. The next prime is 14145181. The reversal of 14145131 is 13154141.

14145131 = 642 + 652 + ... + 3492.

It is a happy number.

It is not a de Polignac number, because 14145131 - 214 = 14128747 is a prime.

It is a super-2 number, since 2×141451312 = 400169462014322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14145181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12470 + ... + 13556.

It is an arithmetic number, because the mean of its divisors is an integer number (796416).

Almost surely, 214145131 is an apocalyptic number.

14145131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14145131 is a deficient number, since it is larger than the sum of its proper divisors (4968853).

14145131 is a wasteful number, since it uses less digits than its factorization.

14145131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1118 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 14145131 is about 3761.0013294334. The cubic root of 14145131 is about 241.8441897115.

Adding to 14145131 its reverse (13154141), we get a palindrome (27299272).

The spelling of 14145131 in words is "fourteen million, one hundred forty-five thousand, one hundred thirty-one".

Divisors: 1 7 11 13 77 91 143 169 1001 1087 1183 1859 7609 11957 13013 14131 83699 98917 155441 183703 1088087 1285921 2020733 14145131