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144392000 = 265318049
BaseRepresentation
bin10001001101100…
…11111101000000
3101001200212120212
420212303331000
5243431021000
622154453252
73402211634
oct1046637500
9331625525
10144392000
1174561935
1240434228
1323bb746c
1415268dc4
15ca22c35
hex89b3f40

144392000 has 56 divisors (see below), whose sum is σ = 357606600. Its totient is φ = 57753600.

The previous prime is 144391993. The next prime is 144392071. The reversal of 144392000 is 293441.

144392000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7744 + 144384256 = 88^2 + 12016^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025 + ... + 17024.

Almost surely, 2144392000 is an apocalyptic number.

144392000 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 144392000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178803300).

144392000 is an abundant number, since it is smaller than the sum of its proper divisors (213214600).

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

144392000 is an equidigital number, since it uses as much as digits as its factorization.

144392000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18076 (or 18056 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 144392000 is about 12016.3222326967. The cubic root of 144392000 is about 524.6234639466.

The spelling of 144392000 in words is "one hundred forty-four million, three hundred ninety-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 800 1000 1600 2000 4000 8000 18049 36098 72196 90245 144392 180490 288784 360980 451225 577568 721960 902450 1155136 1443920 1804900 2256125 2887840 3609800 4512250 5775680 7219600 9024500 14439200 18049000 28878400 36098000 72196000 144392000