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144142318 = 272071159
BaseRepresentation
bin10001001011101…
…10111111101110
3101001020012002101
420211312333232
5243400023233
622145245314
73400121665
oct1045667756
9331205071
10144142318
1174401291
124033383a
1323b2a918
1415201ddc
15c9c3c7d
hex8976fee

144142318 has 4 divisors (see below), whose sum is σ = 216213480. Its totient is φ = 72071158.

The previous prime is 144142309. The next prime is 144142319. The reversal of 144142318 is 813241441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 813241441 = 5147158003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144142319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36035578 + ... + 36035581.

It is an arithmetic number, because the mean of its divisors is an integer number (54053370).

Almost surely, 2144142318 is an apocalyptic number.

144142318 is a deficient number, since it is larger than the sum of its proper divisors (72071162).

144142318 is an equidigital number, since it uses as much as digits as its factorization.

144142318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72071161.

The product of its digits is 3072, while the sum is 28.

The square root of 144142318 is about 12005.9284522273. The cubic root of 144142318 is about 524.3208972988.

Adding to 144142318 its reverse (813241441), we get a palindrome (957383759).

It can be divided in two parts, 1441423 and 18, that added together give a palindrome (1441441).

The spelling of 144142318 in words is "one hundred forty-four million, one hundred forty-two thousand, three hundred eighteen".

Divisors: 1 2 72071159 144142318