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2266880 = 28571123
BaseRepresentation
bin1000101001011100000000
311021011120112
420221130000
51040020010
6120330452
725160660
oct10513400
94234515
102266880
111309160
12913a28
13614a65
144301a0
152eba05
hex229700

2266880 has 144 divisors (see below), whose sum is σ = 7064064. Its totient is φ = 675840.

The previous prime is 2266861. The next prime is 2266883. The reversal of 2266880 is 886622.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98549 + ... + 98571.

It is an arithmetic number, because the mean of its divisors is an integer number (49056).

22266880 is an apocalyptic number.

2266880 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 2266880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3532032).

2266880 is an abundant number, since it is smaller than the sum of its proper divisors (4797184).

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

2266880 is a wasteful number, since it uses less digits than its factorization.

2266880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2266880 is about 1505.6161529420. The cubic root of 2266880 is about 131.3639433806.

The spelling of 2266880 in words is "two million, two hundred sixty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 23 28 32 35 40 44 46 55 56 64 70 77 80 88 92 110 112 115 128 140 154 160 161 176 184 220 224 230 253 256 280 308 320 322 352 368 385 440 448 460 506 560 616 640 644 704 736 770 805 880 896 920 1012 1120 1232 1265 1280 1288 1408 1472 1540 1610 1760 1771 1792 1840 2024 2240 2464 2530 2576 2816 2944 3080 3220 3520 3542 3680 4048 4480 4928 5060 5152 5888 6160 6440 7040 7084 7360 8096 8855 8960 9856 10120 10304 12320 12880 14080 14168 14720 16192 17710 19712 20240 20608 24640 25760 28336 29440 32384 35420 40480 41216 49280 51520 56672 64768 70840 80960 98560 103040 113344 141680 161920 206080 226688 283360 323840 453376 566720 1133440 2266880