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2230400 = 27521741
BaseRepresentation
bin1000100000100010000000
311012022112102
420200202000
51032333100
6115445532
724646424
oct10404200
94168472
102230400
111293807
128b68a8
13601283
14420b84
152e0cd5
hex220880

2230400 has 96 divisors (see below), whose sum is σ = 5976180. Its totient is φ = 819200.

The previous prime is 2230351. The next prime is 2230409. The reversal of 2230400 is 40322.

It can be written as a sum of positive squares in 6 ways, for example, as 529984 + 1700416 = 728^2 + 1304^2 .

It is not an unprimeable number, because it can be changed into a prime (2230409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54380 + ... + 54420.

22230400 is an apocalyptic number.

2230400 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 2230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2988090).

2230400 is an abundant number, since it is smaller than the sum of its proper divisors (3745780).

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

2230400 is a wasteful number, since it uses less digits than its factorization.

2230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 2230400 is about 1493.4523762076. The cubic root of 2230400 is about 130.6554666693.

Adding to 2230400 its reverse (40322), we get a palindrome (2270722).

The spelling of 2230400 in words is "two million, two hundred thirty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 41 50 64 68 80 82 85 100 128 136 160 164 170 200 205 272 320 328 340 400 410 425 544 640 656 680 697 800 820 850 1025 1088 1312 1360 1394 1600 1640 1700 2050 2176 2624 2720 2788 3200 3280 3400 3485 4100 5248 5440 5576 6560 6800 6970 8200 10880 11152 13120 13600 13940 16400 17425 22304 26240 27200 27880 32800 34850 44608 54400 55760 65600 69700 89216 111520 131200 139400 223040 278800 446080 557600 1115200 2230400