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13144320255 = 35112325713477
BaseRepresentation
bin11000011110111011…
…00110100011111111
31020221001100122122010
430033131212203333
5203404421222010
610012144222303
7643504610253
oct141735464377
936831318563
1013144320255
1156356983a0
12266a00a993
1313162625c1
148c99b6263
1551de5d620
hex30f7668ff

13144320255 has 64 divisors (see below), whose sum is σ = 24035263488. Its totient is φ = 6071746560.

The previous prime is 13144320239. The next prime is 13144320271. The reversal of 13144320255 is 55202344131.

It is an interprime number because it is at equal distance from previous prime (13144320239) and next prime (13144320271).

It is not a de Polignac number, because 13144320255 - 24 = 13144320239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 968577 + ... + 982053.

It is an arithmetic number, because the mean of its divisors is an integer number (375550992).

Almost surely, 213144320255 is an apocalyptic number.

13144320255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13144320255 is a deficient number, since it is larger than the sum of its proper divisors (10890943233).

13144320255 is a wasteful number, since it uses less digits than its factorization.

13144320255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13144320255 its reverse (55202344131), we get a palindrome (68346664386).

The spelling of 13144320255 in words is "thirteen billion, one hundred forty-four million, three hundred twenty thousand, two hundred fifty-five".

Divisors: 1 3 5 11 15 23 33 55 69 115 165 253 257 345 759 771 1265 1285 2827 3795 3855 5911 8481 13477 14135 17733 29555 40431 42405 65021 67385 88665 148247 195063 202155 309971 325105 444741 741235 929913 975315 1549855 2223705 3409681 3463589 4649565 10229043 10390767 17048405 17317945 38099479 51145215 51953835 79662547 114298437 190497395 238987641 398312735 571492185 876288017 1194938205 2628864051 4381440085 13144320255