[go: up one dir, main page]

Search a number
-
+
11287808 = 2876299
BaseRepresentation
bin101011000011…
…110100000000
3210020110221222
4223003310000
510342202213
61041534212
7164642030
oct53036400
923213858
1011287808
11640a774
123944368
132452a9c
1416db8c0
15ece808
hexac3d00

11287808 has 36 divisors (see below), whose sum is σ = 25754400. Its totient is φ = 4836864.

The previous prime is 11287807. The next prime is 11287811. The reversal of 11287808 is 80878211.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358 + ... + 4941.

It is an arithmetic number, because the mean of its divisors is an integer number (715400).

Almost surely, 211287808 is an apocalyptic number.

It is an amenable number.

11287808 is an abundant number, since it is smaller than the sum of its proper divisors (14466592).

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

11287808 is an frugal number, since it uses more digits than its factorization.

11287808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322 (or 6308 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 11287808 is about 3359.7333227505. The cubic root of 11287808 is about 224.3209684378.

It can be divided in two parts, 112 and 87808, that multiplied together give a 4-th power (9834496 = 564).

The spelling of 11287808 in words is "eleven million, two hundred eighty-seven thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 896 1792 6299 12598 25196 44093 50392 88186 100784 176372 201568 352744 403136 705488 806272 1410976 1612544 2821952 5643904 11287808