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8222280 = 2335116229
BaseRepresentation
bin11111010111011001001000
3120110201211220
4133113121020
54101103110
6452122040
7126613443
oct37273110
916421756
108222280
114706580
122906320
13191b671
14114065a
15ac6370
hex7d7648

8222280 has 64 divisors (see below), whose sum is σ = 26913600. Its totient is φ = 1992960.

The previous prime is 8222257. The next prime is 8222303. The reversal of 8222280 is 822228.

It is an interprime number because it is at equal distance from previous prime (8222257) and next prime (8222303).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 8222280.

It is an unprimeable number.

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, 1795 + ... + 4434.

It is an arithmetic number, because the mean of its divisors is an integer number (420525).

Almost surely, 28222280 is an apocalyptic number.

It is an amenable number.

8222280 is an abundant number, since it is smaller than the sum of its proper divisors (18691320).

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

8222280 is a wasteful number, since it uses less digits than its factorization.

8222280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254 (or 6250 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 8222280 is about 2867.4518304585. The cubic root of 8222280 is about 201.8354376492.

The spelling of 8222280 in words is "eight million, two hundred twenty-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 6229 12458 18687 24916 31145 37374 49832 62290 68519 74748 93435 124580 137038 149496 186870 205557 249160 274076 342595 373740 411114 548152 685190 747480 822228 1027785 1370380 1644456 2055570 2740760 4111140 8222280