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2238080 = 27513269
BaseRepresentation
bin1000100010011010000000
311012201001212
420202122000
51033104310
6115545252
725011005
oct10423200
94181055
102238080
111299559
128bb228
13604910
144238ac
152e3205
hex222680

2238080 has 64 divisors (see below), whose sum is σ = 5783400. Its totient is φ = 823296.

The previous prime is 2238079. The next prime is 2238091. The reversal of 2238080 is 808322.

It can be written as a sum of positive squares in 4 ways, for example, as 817216 + 1420864 = 904^2 + 1192^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8186 + ... + 8454.

22238080 is an apocalyptic number.

2238080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2238080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2891700).

2238080 is an abundant number, since it is smaller than the sum of its proper divisors (3545320).

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

2238080 is a wasteful number, since it uses less digits than its factorization.

2238080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2238080 is about 1496.0213902214. The cubic root of 2238080 is about 130.8052581064.

The spelling of 2238080 in words is "two million, two hundred thirty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 260 269 320 416 520 538 640 832 1040 1076 1345 1664 2080 2152 2690 3497 4160 4304 5380 6994 8320 8608 10760 13988 17216 17485 21520 27976 34432 34970 43040 55952 69940 86080 111904 139880 172160 223808 279760 447616 559520 1119040 2238080