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13140230240 = 255174830967
BaseRepresentation
bin11000011110011100…
…00000000001100000
31020220202122212012002
430033032000001200
5203402344331430
610011520423132
7643425054104
oct141716000140
936822585162
1013140230240
115633354515
122668777aa8
13131545ca87
148c922d904
1551d901845
hex30f380060

13140230240 has 48 divisors (see below), whose sum is σ = 32869906272. Its totient is φ = 4946909184.

The previous prime is 13140230237. The next prime is 13140230251. The reversal of 13140230240 is 4203204131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412764 + ... + 2418203.

It is an arithmetic number, because the mean of its divisors is an integer number (684789714).

Almost surely, 213140230240 is an apocalyptic number.

13140230240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13140230240 is an abundant number, since it is smaller than the sum of its proper divisors (19729676032).

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

13140230240 is a wasteful number, since it uses less digits than its factorization.

13140230240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830999 (or 4830991 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13140230240 its reverse (4203204131), we get a palindrome (17343434371).

The spelling of 13140230240 in words is "thirteen billion, one hundred forty million, two hundred thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 272 340 544 680 1360 2720 4830967 9661934 19323868 24154835 38647736 48309670 77295472 82126439 96619340 154590944 164252878 193238680 328505756 386477360 410632195 657011512 772954720 821264390 1314023024 1642528780 2628046048 3285057560 6570115120 13140230240