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13824620 = 225691231
BaseRepresentation
bin110100101111…
…001001101100
3222000100210222
4310233021230
512014341440
61212150512
7225336005
oct64571154
928010728
1013824620
117892707
124768438
132b30664
141b9c1ac
1513312b5
hexd2f26c

13824620 has 12 divisors (see below), whose sum is σ = 29031744. Its totient is φ = 5529840.

The previous prime is 13824617. The next prime is 13824631. The reversal of 13824620 is 2642831.

It is a super-2 number, since 2×138246202 = 382240236288800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13824620.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 345596 + ... + 345635.

It is an arithmetic number, because the mean of its divisors is an integer number (2419312).

Almost surely, 213824620 is an apocalyptic number.

13824620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13824620 is an abundant number, since it is smaller than the sum of its proper divisors (15207124).

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

13824620 is a wasteful number, since it uses less digits than its factorization.

13824620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691240 (or 691238 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13824620 is about 3718.1473881491. The cubic root of 13824620 is about 240.0035879093.

The spelling of 13824620 in words is "thirteen million, eight hundred twenty-four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 691231 1382462 2764924 3456155 6912310 13824620