Search a number
-
+
144311020 = 22571030793
BaseRepresentation
bin10001001101000…
…00001011101100
3101001112202111121
420212200023230
5243420423040
622153030324
73401423560
oct1046401354
9331482447
10144311020
1174507007
12403b53a4
1323b89649
14152476a0
15ca08c4a
hex89a02ec

144311020 has 24 divisors (see below), whose sum is σ = 346346784. Its totient is φ = 49478016.

The previous prime is 144311017. The next prime is 144311059. The reversal of 144311020 is 20113441.

It is a junction number, because it is equal to n+sod(n) for n = 144310985 and 144311003.

It is an unprimeable number.

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, 515257 + ... + 515536.

It is an arithmetic number, because the mean of its divisors is an integer number (14431116).

Almost surely, 2144311020 is an apocalyptic number.

144311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144311020 is an abundant number, since it is smaller than the sum of its proper divisors (202035764).

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

144311020 is a wasteful number, since it uses less digits than its factorization.

144311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030809 (or 1030807 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 144311020 is about 12012.9521767133. The cubic root of 144311020 is about 524.5253699784.

Adding to 144311020 its reverse (20113441), we get a palindrome (164424461).

It can be divided in two parts, 14431 and 1020, that added together give a palindrome (15451).

The spelling of 144311020 in words is "one hundred forty-four million, three hundred eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1030793 2061586 4123172 5153965 7215551 10307930 14431102 20615860 28862204 36077755 72155510 144311020