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27829008 = 2434109197
BaseRepresentation
bin110101000101…
…0001100010000
31221100212020000
41222022030100
524111012013
62432250000
7455354064
oct152121420
957325200
1027829008
1114788389
1293a0900
1359c4a8c
1439a5aa4
15269a973
hex1a8a310

27829008 has 100 divisors (see below), whose sum is σ = 81696780. Its totient is φ = 9144576.

The previous prime is 27829007. The next prime is 27829013. The reversal of 27829008 is 80092872.

It can be written as a sum of positive squares in 2 ways, for example, as 24324624 + 3504384 = 4932^2 + 1872^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27829003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141166 + ... + 141362.

Almost surely, 227829008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27829008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40848390).

27829008 is an abundant number, since it is smaller than the sum of its proper divisors (53867772).

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

27829008 is a wasteful number, since it uses less digits than its factorization.

27829008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 27829008 is about 5275.3206537612. The cubic root of 27829008 is about 303.0395007810.

The spelling of 27829008 in words is "twenty-seven million, eight hundred twenty-nine thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 109 144 162 197 216 218 324 327 394 432 436 591 648 654 788 872 981 1182 1296 1308 1576 1744 1773 1962 2364 2616 2943 3152 3546 3924 4728 5232 5319 5886 7092 7848 8829 9456 10638 11772 14184 15696 15957 17658 21276 21473 23544 28368 31914 35316 42552 42946 47088 63828 64419 70632 85104 85892 127656 128838 141264 171784 193257 255312 257676 343568 386514 515352 579771 773028 1030704 1159542 1546056 1739313 2319084 3092112 3478626 4638168 6957252 9276336 13914504 27829008