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144257854 = 2135548379
BaseRepresentation
bin10001001100100…
…11001100111110
3101001110001120111
420212103030332
5243412222404
622151540234
73401112556
oct1046231476
9331401514
10144257854
1174480074
124038a67a
1323b6b3a0
1415232166
15c9e8104
hex899333e

144257854 has 8 divisors (see below), whose sum is σ = 233031960. Its totient is φ = 66580536.

The previous prime is 144257851. The next prime is 144257873. The reversal of 144257854 is 458752441.

144257854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144257851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2774164 + ... + 2774215.

It is an arithmetic number, because the mean of its divisors is an integer number (29128995).

Almost surely, 2144257854 is an apocalyptic number.

144257854 is a deficient number, since it is larger than the sum of its proper divisors (88774106).

144257854 is a wasteful number, since it uses less digits than its factorization.

144257854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548394.

The product of its digits is 179200, while the sum is 40.

The square root of 144257854 is about 12010.7391113120. The cubic root of 144257854 is about 524.4609481457.

The spelling of 144257854 in words is "one hundred forty-four million, two hundred fifty-seven thousand, eight hundred fifty-four".

Divisors: 1 2 13 26 5548379 11096758 72128927 144257854