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2100231200 = 255223114143
BaseRepresentation
bin111110100101110…
…1111110000100000
312102100221210120202
41331023233300200
513300124344300
6544223124332
7103021446014
oct17513576040
95370853522
102100231200
11988586871
124a74436a8
1327616c172
1415cd0a544
15c45b0ad5
hex7d2efc20

2100231200 has 72 divisors (see below), whose sum is σ = 5350157568. Its totient is φ = 803559680.

The previous prime is 2100231193. The next prime is 2100231239. The reversal of 2100231200 is 21320012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38672 + ... + 75471.

It is an arithmetic number, because the mean of its divisors is an integer number (74307744).

Almost surely, 22100231200 is an apocalyptic number.

2100231200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100231200 is an abundant number, since it is smaller than the sum of its proper divisors (3249926368).

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

2100231200 is a wasteful number, since it uses less digits than its factorization.

2100231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114186 (or 114173 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2100231200 is about 45828.2794789418. The cubic root of 2100231200 is about 1280.6261584856.

Adding to 2100231200 its reverse (21320012), we get a palindrome (2121551212).

The spelling of 2100231200 in words is "two billion, one hundred million, two hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 23 25 32 40 46 50 80 92 100 115 160 184 200 230 368 400 460 575 736 800 920 1150 1840 2300 3680 4600 9200 18400 114143 228286 456572 570715 913144 1141430 1826288 2282860 2625289 2853575 3652576 4565720 5250578 5707150 9131440 10501156 11414300 13126445 18262880 21002312 22828600 26252890 42004624 45657200 52505780 65632225 84009248 91314400 105011560 131264450 210023120 262528900 420046240 525057800 1050115600 2100231200