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144313145 = 5187715377
BaseRepresentation
bin10001001101000…
…00101100111001
3101001112212102022
420212200230321
5243421010040
622153044225
73401433014
oct1046405471
9331485368
10144313145
1174508669
12403b6675
1323b8a5c2
141524837b
15ca096b5
hex89a0b39

144313145 has 8 divisors (see below), whose sum is σ = 173279304. Its totient is φ = 115381504.

The previous prime is 144313139. The next prime is 144313163. The reversal of 144313145 is 541313441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 69939769 + 74373376 = 8363^2 + 8624^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144313145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697 + ... + 17073.

It is an arithmetic number, because the mean of its divisors is an integer number (21659913).

Almost surely, 2144313145 is an apocalyptic number.

It is an amenable number.

144313145 is a deficient number, since it is larger than the sum of its proper divisors (28966159).

144313145 is a wasteful number, since it uses less digits than its factorization.

144313145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17259.

The product of its digits is 2880, while the sum is 26.

The square root of 144313145 is about 12013.0406225901. The cubic root of 144313145 is about 524.5279445357.

Adding to 144313145 its reverse (541313441), we get a palindrome (685626586).

It can be divided in two parts, 14431 and 3145, that added together give a cube (17576 = 263).

The spelling of 144313145 in words is "one hundred forty-four million, three hundred thirteen thousand, one hundred forty-five".

Divisors: 1 5 1877 9385 15377 76885 28862629 144313145