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143944900 = 225211130859
BaseRepresentation
bin10001001010001…
…10110011000100
3101000212011021121
420211012303010
5243322214100
622141123324
73365340301
oct1045066304
9330764247
10143944900
1174286a30
1240259544
1323a8bac8
14151900a8
15c98551a
hex8946cc4

143944900 has 36 divisors (see below), whose sum is σ = 340759440. Its totient is φ = 52343200.

The previous prime is 143944861. The next prime is 143944901. The reversal of 143944900 is 9449341.

It is not an unprimeable number, because it can be changed into a prime (143944901) by changing a digit.

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, 64330 + ... + 66529.

It is an arithmetic number, because the mean of its divisors is an integer number (9465540).

Almost surely, 2143944900 is an apocalyptic number.

143944900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143944900 is an abundant number, since it is smaller than the sum of its proper divisors (196814540).

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

143944900 is a wasteful number, since it uses less digits than its factorization.

143944900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130884 (or 130877 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 143944900 is about 11997.7039470059. The cubic root of 143944900 is about 524.0814171414.

The spelling of 143944900 in words is "one hundred forty-three million, nine hundred forty-four thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 130859 261718 523436 654295 1308590 1439449 2617180 2878898 3271475 5757796 6542950 7197245 13085900 14394490 28788980 35986225 71972450 143944900