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120231200 = 25521371097
BaseRepresentation
bin1110010101010…
…01010100100000
322101020101012102
413022221110200
5221234344300
615532545532
72656643165
oct712512440
9271211172
10120231200
116195a531
12343222a8
131bba822b
1411d7a06c
15a84e0d5
hex72a9520

120231200 has 72 divisors (see below), whose sum is σ = 295926372. Its totient is φ = 47697920.

The previous prime is 120231197. The next prime is 120231211. The reversal of 120231200 is 2132021.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 35664784 + 84566416 = 5972^2 + 9196^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109052 + ... + 110148.

Almost surely, 2120231200 is an apocalyptic number.

120231200 is a gapful number since it is divisible by the number (10) 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 120231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147963186).

120231200 is an abundant number, since it is smaller than the sum of its proper divisors (175695172).

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

120231200 is a wasteful number, since it uses less digits than its factorization.

120231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1241 counting only the distinct ones).

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

The square root of 120231200 is about 10964.9988600091. The cubic root of 120231200 is about 493.5589828858.

Adding to 120231200 its reverse (2132021), we get a palindrome (122363221).

The spelling of 120231200 in words is "one hundred twenty million, two hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 137 160 200 274 400 548 685 800 1096 1097 1370 2192 2194 2740 3425 4384 4388 5480 5485 6850 8776 10960 10970 13700 17552 21920 21940 27400 27425 35104 43880 54800 54850 87760 109600 109700 150289 175520 219400 300578 438800 601156 751445 877600 1202312 1502890 2404624 3005780 3757225 4809248 6011560 7514450 12023120 15028900 24046240 30057800 60115600 120231200