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227506240 = 26513173217
BaseRepresentation
bin11011000111101…
…11100001000000
3120212002111220001
431203313201000
5431220144430
634324125344
75431525333
oct1543674100
9525074801
10227506240
1110746a895
1264236854
13381981a0
142230261a
1514e8e3ca
hexd8f7840

227506240 has 112 divisors (see below), whose sum is σ = 617933232. Its totient is φ = 79036416.

The previous prime is 227506231. The next prime is 227506243. The reversal of 227506240 is 42605722.

227506240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2985984 + 224520256 = 1728^2 + 14984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 227506199 and 227506208.

It is not an unprimeable number, because it can be changed into a prime (227506243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69112 + ... + 72328.

It is an arithmetic number, because the mean of its divisors is an integer number (5517261).

Almost surely, 2227506240 is an apocalyptic number.

227506240 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 227506240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308966616).

227506240 is an abundant number, since it is smaller than the sum of its proper divisors (390426992).

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

227506240 is a wasteful number, since it uses less digits than its factorization.

227506240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264 (or 3254 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 227506240 is about 15083.3099815657. The cubic root of 227506240 is about 610.4701562128.

The spelling of 227506240 in words is "two hundred twenty-seven million, five hundred six thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 130 136 160 170 208 221 260 272 320 340 416 442 520 544 680 832 884 1040 1088 1105 1360 1768 2080 2210 2720 3217 3536 4160 4420 5440 6434 7072 8840 12868 14144 16085 17680 25736 32170 35360 41821 51472 54689 64340 70720 83642 102944 109378 128680 167284 205888 209105 218756 257360 273445 334568 418210 437512 514720 546890 669136 710957 836420 875024 1029440 1093780 1338272 1421914 1672840 1750048 2187560 2676544 2843828 3345680 3500096 3554785 4375120 5687656 6691360 7109570 8750240 11375312 13382720 14219140 17500480 22750624 28438280 45501248 56876560 113753120 227506240