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144144894 = 2358740927
BaseRepresentation
bin10001001011101…
…11100111111110
3101001020022121210
420211313213332
5243400114034
622145305250
73400132335
oct1045674776
9331208553
10144144894
1174403213
1240335226
1323b2bb4a
1415202d1c
15c9c48e9
hex89779fe

144144894 has 16 divisors (see below), whose sum is σ = 288787968. Its totient is φ = 47965272.

The previous prime is 144144883. The next prime is 144144899. The reversal of 144144894 is 498441441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144144899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16942 + ... + 23985.

It is an arithmetic number, because the mean of its divisors is an integer number (18049248).

Almost surely, 2144144894 is an apocalyptic number.

144144894 is an abundant number, since it is smaller than the sum of its proper divisors (144643074).

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

144144894 is a wasteful number, since it uses less digits than its factorization.

144144894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41519.

The product of its digits is 73728, while the sum is 39.

The square root of 144144894 is about 12006.0357320808. The cubic root of 144144894 is about 524.3240206993.

The spelling of 144144894 in words is "one hundred forty-four million, one hundred forty-four thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 587 1174 1761 3522 40927 81854 122781 245562 24024149 48048298 72072447 144144894