Search a number
-
+
27872448 = 263179811
BaseRepresentation
bin110101001010…
…0110011000000
31221110001210220
41222110303000
524113404243
62433223040
7455624532
oct152246300
957401726
1027872448
1114807a8a
129401a80
135a0b796
1439b7852
1526a8783
hex1a94cc0

27872448 has 56 divisors (see below), whose sum is σ = 74249280. Its totient is φ = 9227520.

The previous prime is 27872447. The next prime is 27872459. The reversal of 27872448 is 84427872.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27872447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33963 + ... + 34773.

It is an arithmetic number, because the mean of its divisors is an integer number (1325880).

Almost surely, 227872448 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 27872448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37124640).

27872448 is an abundant number, since it is smaller than the sum of its proper divisors (46376832).

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

27872448 is a wasteful number, since it uses less digits than its factorization.

27872448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 995 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 27872448 is about 5279.4363335493. The cubic root of 27872448 is about 303.1970964372.

The spelling of 27872448 in words is "twenty-seven million, eight hundred seventy-two thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 179 192 358 537 716 811 1074 1432 1622 2148 2433 2864 3244 4296 4866 5728 6488 8592 9732 11456 12976 17184 19464 25952 34368 38928 51904 77856 145169 155712 290338 435507 580676 871014 1161352 1742028 2322704 3484056 4645408 6968112 9290816 13936224 27872448