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13275570 = 2357211821
BaseRepresentation
bin110010101001…
…000110110010
3220222110122210
4302221012302
511344304240
61152312550
7220561200
oct62510662
926873583
1013275570
117548150
124542756
13299a789
141a98070
151273780
hexca91b2

13275570 has 96 divisors (see below), whose sum is σ = 40481856. Its totient is φ = 2755200.

The previous prime is 13275569. The next prime is 13275571. The reversal of 13275570 is 7557231.

It is an interprime number because it is at equal distance from previous prime (13275569) and next prime (13275571).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13275571) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 15760 + ... + 16580.

It is an arithmetic number, because the mean of its divisors is an integer number (421686).

Almost surely, 213275570 is an apocalyptic number.

13275570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13275570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20240928).

13275570 is an abundant number, since it is smaller than the sum of its proper divisors (27206286).

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

13275570 is a wasteful number, since it uses less digits than its factorization.

13275570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 13275570 is about 3643.5655613698. The cubic root of 13275570 is about 236.7832945856.

The spelling of 13275570 in words is "thirteen million, two hundred seventy-five thousand, five hundred seventy".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 49 55 66 70 77 98 105 110 147 154 165 210 231 245 294 330 385 462 490 539 735 770 821 1078 1155 1470 1617 1642 2310 2463 2695 3234 4105 4926 5390 5747 8085 8210 9031 11494 12315 16170 17241 18062 24630 27093 28735 34482 40229 45155 54186 57470 63217 80458 86205 90310 120687 126434 135465 172410 189651 201145 241374 270930 316085 379302 402290 442519 603435 632170 885038 948255 1206870 1327557 1896510 2212595 2655114 4425190 6637785 13275570