Search a number
-
+
144508242 = 23113213139
BaseRepresentation
bin10001001110100…
…00010101010010
3101001220210001010
420213100111102
5243443230432
622201151350
73403204554
oct1047202522
9331823033
10144508242
11746311aa
124048b556
1323c28348
14152994d4
15ca473cc
hex89d0552

144508242 has 16 divisors (see below), whose sum is σ = 291575520. Its totient is φ = 47742912.

The previous prime is 144508201. The next prime is 144508249. The reversal of 144508242 is 242805441.

It is not an unprimeable number, because it can be changed into a prime (144508249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105892 + ... + 107247.

It is an arithmetic number, because the mean of its divisors is an integer number (18223470).

Almost surely, 2144508242 is an apocalyptic number.

144508242 is an abundant number, since it is smaller than the sum of its proper divisors (147067278).

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

144508242 is a wasteful number, since it uses less digits than its factorization.

144508242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213257.

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 144508242 is about 12021.1580972883. The cubic root of 144508242 is about 524.7642079473.

The spelling of 144508242 in words is "one hundred forty-four million, five hundred eight thousand, two hundred forty-two".

Divisors: 1 2 3 6 113 226 339 678 213139 426278 639417 1278834 24084707 48169414 72254121 144508242