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13827580 = 2251324091
BaseRepresentation
bin110100101111…
…110111111100
3222000111212121
4310233313330
512014440310
61212212324
7225350434
oct64576774
928014777
1013827580
117894958
12476a0a4
132b31b00
141b9d2c4
1513320da
hexd2fdfc

13827580 has 36 divisors (see below), whose sum is σ = 31451112. Its totient is φ = 5104320.

The previous prime is 13827557. The next prime is 13827589. The reversal of 13827580 is 8572831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13827589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1335 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (873642).

Almost surely, 213827580 is an apocalyptic number.

13827580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13827580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15725556).

13827580 is an abundant number, since it is smaller than the sum of its proper divisors (17623532).

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

13827580 is a wasteful number, since it uses less digits than its factorization.

13827580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4111 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 13827580 is about 3718.5454145405. The cubic root of 13827580 is about 240.0207158044.

The spelling of 13827580 in words is "thirteen million, eight hundred twenty-seven thousand, five hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3380 4091 8182 16364 20455 40910 53183 81820 106366 212732 265915 531830 691379 1063660 1382758 2765516 3456895 6913790 13827580