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14090509040 = 245263669701
BaseRepresentation
bin11010001111101110…
…00001101011110000
31100100222210000122012
431013313001223300
5212324132242130
610250104302052
71006114231166
oct150767015360
940328700565
1014090509040
115a807a7aa3
122892a71928
1314372ab71a
14979517236
15577060995
hex347dc1af0

14090509040 has 40 divisors (see below), whose sum is σ = 32885047008. Its totient is φ = 5614764800.

The previous prime is 14090509039. The next prime is 14090509049. The reversal of 14090509040 is 4090509041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 14090508988 and 14090509006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14090509049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313811 + ... + 355890.

Almost surely, 214090509040 is an apocalyptic number.

14090509040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14090509040 is an abundant number, since it is smaller than the sum of its proper divisors (18794537968).

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

14090509040 is a wasteful number, since it uses less digits than its factorization.

14090509040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669977 (or 669971 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

Subtracting from 14090509040 its reverse (4090509041), we obtain a palindrome (9999999999).

The spelling of 14090509040 in words is "fourteen billion, ninety million, five hundred nine thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 263 526 1052 1315 2104 2630 4208 5260 10520 21040 669701 1339402 2678804 3348505 5357608 6697010 10715216 13394020 26788040 53576080 176131363 352262726 704525452 880656815 1409050904 1761313630 2818101808 3522627260 7045254520 14090509040