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6220280 = 2351167211
BaseRepresentation
bin10111101110100111111000
3102201000121202
4113232213320
53043022110
6341153332
7103604633
oct27564770
912630552
106220280
113569430
1220bb848
13139a351
14b7cc1a
1582d0a5
hex5ee9f8

6220280 has 64 divisors (see below), whose sum is σ = 15569280. Its totient is φ = 2217600.

The previous prime is 6220271. The next prime is 6220289. The reversal of 6220280 is 820226.

It is an interprime number because it is at equal distance from previous prime (6220271) and next prime (6220289).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220289) 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, 29375 + ... + 29585.

It is an arithmetic number, because the mean of its divisors is an integer number (243270).

Almost surely, 26220280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6220280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7784640).

6220280 is an abundant number, since it is smaller than the sum of its proper divisors (9349000).

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

6220280 is a wasteful number, since it uses less digits than its factorization.

6220280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 6220280 is about 2494.0489169220. The cubic root of 6220280 is about 183.9091391344.

The spelling of 6220280 in words is "six million, two hundred twenty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 67 88 110 134 211 220 268 335 422 440 536 670 737 844 1055 1340 1474 1688 2110 2321 2680 2948 3685 4220 4642 5896 7370 8440 9284 11605 14137 14740 18568 23210 28274 29480 46420 56548 70685 92840 113096 141370 155507 282740 311014 565480 622028 777535 1244056 1555070 3110140 6220280