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226589280 = 2535547863
BaseRepresentation
bin11011000000101…
…11101001100000
3120210100221001120
431200113221200
5431001324110
634252332240
75420656101
oct1540275140
9523327046
10226589280
111069a3975
1263a74080
1337c369c8
14221443a8
1514d5c870
hexd817a60

226589280 has 96 divisors (see below), whose sum is σ = 715889664. Its totient is φ = 60243456.

The previous prime is 226589273. The next prime is 226589281. The reversal of 226589280 is 82985622.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226589281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262129 + ... + 262991.

It is an arithmetic number, because the mean of its divisors is an integer number (7457184).

Almost surely, 2226589280 is an apocalyptic number.

226589280 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 226589280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357944832).

226589280 is an abundant number, since it is smaller than the sum of its proper divisors (489300384).

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

226589280 is a wasteful number, since it uses less digits than its factorization.

226589280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 226589280 is about 15052.8827803846. The cubic root of 226589280 is about 609.6488886880.

The spelling of 226589280 in words is "two hundred twenty-six million, five hundred eighty-nine thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 547 863 1094 1641 1726 2188 2589 2735 3282 3452 4315 4376 5178 5470 6564 6904 8205 8630 8752 10356 10940 12945 13128 13808 16410 17260 17504 20712 21880 25890 26256 27616 32820 34520 41424 43760 51780 52512 65640 69040 82848 87520 103560 131280 138080 207120 262560 414240 472061 944122 1416183 1888244 2360305 2832366 3776488 4720610 5664732 7080915 7552976 9441220 11329464 14161830 15105952 18882440 22658928 28323660 37764880 45317856 56647320 75529760 113294640 226589280