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144024242 = 297742393
BaseRepresentation
bin10001001010110…
…10001010110010
3101001000012010012
420211122022302
5243332233432
622142534522
73366120515
oct1045321262
9331005105
10144024242
11743305aa
1240297442
1323ab8c5b
14151b0d7c
15c99dcb2
hex895a2b2

144024242 has 8 divisors (see below), whose sum is σ = 218263836. Its totient is φ = 71269632.

The previous prime is 144024217. The next prime is 144024259. The reversal of 144024242 is 242420441.

It can be written as a sum of positive squares in 2 ways, for example, as 133841761 + 10182481 = 11569^2 + 3191^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371003 + ... + 371390.

Almost surely, 2144024242 is an apocalyptic number.

144024242 is a deficient number, since it is larger than the sum of its proper divisors (74239594).

144024242 is an equidigital number, since it uses as much as digits as its factorization.

144024242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742492.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 144024242 is about 12001.0100408257. The cubic root of 144024242 is about 524.1776901603.

Adding to 144024242 its reverse (242420441), we get a palindrome (386444683).

The spelling of 144024242 in words is "one hundred forty-four million, twenty-four thousand, two hundred forty-two".

Divisors: 1 2 97 194 742393 1484786 72012121 144024242