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144942190 = 2530194801
BaseRepresentation
bin10001010001110…
…10010001101110
3101002201211022021
420220322101232
5244101122230
622214340354
73406662661
oct1050722156
9332654267
10144942190
11748a8238
124065a6ba
132404aa13
141536d6d8
15cad0c7a
hex8a3a46e

144942190 has 16 divisors (see below), whose sum is σ = 261036720. Its totient is φ = 57945600.

The previous prime is 144942167. The next prime is 144942191. The reversal of 144942190 is 91249441.

144942190 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1449421902 = 42016476883992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144942191) by changing a digit.

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, 27790 + ... + 32590.

It is an arithmetic number, because the mean of its divisors is an integer number (16314795).

Almost surely, 2144942190 is an apocalyptic number.

144942190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144942190 is a deficient number, since it is larger than the sum of its proper divisors (116094530).

144942190 is a wasteful number, since it uses less digits than its factorization.

144942190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 144942190 is about 12039.1939098928. The cubic root of 144942190 is about 525.2889595974.

The spelling of 144942190 in words is "one hundred forty-four million, nine hundred forty-two thousand, one hundred ninety".

Divisors: 1 2 5 10 3019 4801 6038 9602 15095 24005 30190 48010 14494219 28988438 72471095 144942190