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27828801 = 32711133089
BaseRepresentation
bin110101000101…
…0001001000001
31221100211221100
41222022021001
524111010201
62432245013
7455353350
oct152121101
957324840
1027828801
1114788210
1293a0769
1359c4960
1439a5997
15269a886
hex1a8a241

27828801 has 48 divisors (see below), whose sum is σ = 53988480. Its totient is φ = 13340160.

The previous prime is 27828799. The next prime is 27828809. The reversal of 27828801 is 10882872.

It is not a de Polignac number, because 27828801 - 21 = 27828799 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27828809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7465 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (1124760).

Almost surely, 227828801 is an apocalyptic number.

27828801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27828801 is a deficient number, since it is larger than the sum of its proper divisors (26159679).

27828801 is a wasteful number, since it uses less digits than its factorization.

27828801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 27828801 is about 5275.3010340643. The cubic root of 27828801 is about 303.0387494148.

It can be divided in two parts, 27 and 828801, that added together give a palindrome (828828).

The spelling of 27828801 in words is "twenty-seven million, eight hundred twenty-eight thousand, eight hundred one".

Divisors: 1 3 7 9 11 13 21 33 39 63 77 91 99 117 143 231 273 429 693 819 1001 1287 3003 3089 9009 9267 21623 27801 33979 40157 64869 101937 120471 194607 237853 281099 305811 361413 441727 713559 843297 1325181 2140677 2529891 3092089 3975543 9276267 27828801