Search a number
-
+
225260000 = 255471609
BaseRepresentation
bin11010110110100…
…11000111100000
3120200212101121222
431123103013200
5430131310000
634204034212
75403451460
oct1533230740
9520771558
10225260000
11106176199
1263532968
133788c954
1421cb9ba0
1514b98a85
hexd6d31e0

225260000 has 120 divisors (see below), whose sum is σ = 633734640. Its totient is φ = 77184000.

The previous prime is 225259987. The next prime is 225260003. The reversal of 225260000 is 62522.

225260000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225260003) 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, 139196 + ... + 140804.

It is an arithmetic number, because the mean of its divisors is an integer number (5281122).

Almost surely, 2225260000 is an apocalyptic number.

225260000 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 225260000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316867320).

225260000 is an abundant number, since it is smaller than the sum of its proper divisors (408474640).

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

225260000 is an equidigital number, since it uses as much as digits as its factorization.

225260000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 225260000 is about 15008.6641644085. The cubic root of 225260000 is about 608.4543867852.

The spelling of 225260000 in words is "two hundred twenty-five million, two hundred sixty thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 160 175 200 224 250 280 350 400 500 560 625 700 800 875 1000 1120 1250 1400 1609 1750 2000 2500 2800 3218 3500 4000 4375 5000 5600 6436 7000 8045 8750 10000 11263 12872 14000 16090 17500 20000 22526 25744 28000 32180 35000 40225 45052 51488 56315 64360 70000 80450 90104 112630 128720 140000 160900 180208 201125 225260 257440 281575 321800 360416 402250 450520 563150 643600 804500 901040 1005625 1126300 1287200 1407875 1609000 1802080 2011250 2252600 2815750 3218000 4022500 4505200 5631500 6436000 7039375 8045000 9010400 11263000 14078750 16090000 22526000 28157500 32180000 45052000 56315000 112630000 225260000