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2745183285 = 3351323471447
BaseRepresentation
bin1010001110100000…
…0010110000110101
321002022112202112000
42203220002300311
521110231331120
61132222445513
7125012446545
oct24350026065
97068482460
102745183285
111189647919
12647433899
13349976610
141c0835325
1511100c990
hexa3a02c35

2745183285 has 128 divisors (see below), whose sum is σ = 5604802560. Its totient is φ = 1264336128.

The previous prime is 2745183281. The next prime is 2745183319. The reversal of 2745183285 is 5823815472.

2745183285 is a `hidden beast` number, since 27 + 4 + 518 + 32 + 85 = 666.

It is not a de Polignac number, because 2745183285 - 22 = 2745183281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2745183285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745183281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1896432 + ... + 1897878.

It is an arithmetic number, because the mean of its divisors is an integer number (43787520).

Almost surely, 22745183285 is an apocalyptic number.

It is an amenable number.

2745183285 is an abundant number, since it is smaller than the sum of its proper divisors (2859619275).

2745183285 is a wasteful number, since it uses less digits than its factorization.

2745183285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1538 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 2745183285 is about 52394.4967052838. The cubic root of 2745183285 is about 1400.2012100260.

The spelling of 2745183285 in words is "two billion, seven hundred forty-five million, one hundred eighty-three thousand, two hundred eighty-five".

Divisors: 1 3 5 9 13 15 23 27 39 45 47 65 69 115 117 135 141 195 207 235 299 345 351 423 585 611 621 705 897 1035 1081 1269 1447 1495 1755 1833 2115 2691 3055 3105 3243 4341 4485 5405 5499 6345 7235 8073 9165 9729 13023 13455 14053 16215 16497 18811 21705 27495 29187 33281 39069 40365 42159 48645 56433 65115 68009 70265 82485 94055 99843 126477 145935 166405 169299 195345 204027 210795 282165 299529 340045 379431 432653 499215 507897 612081 632385 846495 884117 898587 1020135 1297959 1497645 1564207 1836243 1897155 2163265 2539485 2652351 3060405 3893877 4420585 4492935 4692621 6489795 7821035 7957053 9181215 11681631 13261755 14077863 19469385 20334691 23463105 23871159 39785265 42233589 58408155 61004073 70389315 101673455 119355795 183012219 211167945 305020365 549036657 915061095 2745183285