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142200 = 23325279
BaseRepresentation
bin100010101101111000
321020001200
4202231320
514022300
63014200
71131402
oct425570
9236050
10142200
1197923
126a360
134c956
1439b72
152c200
hex22b78

142200 has 72 divisors (see below), whose sum is σ = 483600. Its totient is φ = 37440.

The previous prime is 142193. The next prime is 142211. The reversal of 142200 is 2241.

142200 = T16 + T17 + ... + T94.

142200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1761 + ... + 1839.

2142200 is an apocalyptic number.

142200 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 142200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241800).

142200 is an abundant number, since it is smaller than the sum of its proper divisors (341400).

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

142200 is a wasteful number, since it uses less digits than its factorization.

142200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 142200 is about 377.0941526993. The cubic root of 142200 is about 52.1955164159.

Adding to 142200 its reverse (2241), we get a palindrome (144441).

The spelling of 142200 in words is "one hundred forty-two thousand, two hundred", and thus it is an iban number.

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 79 90 100 120 150 158 180 200 225 237 300 316 360 395 450 474 600 632 711 790 900 948 1185 1422 1580 1800 1896 1975 2370 2844 3160 3555 3950 4740 5688 5925 7110 7900 9480 11850 14220 15800 17775 23700 28440 35550 47400 71100 142200