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144414020 = 2257220701
BaseRepresentation
bin10001001101110…
…01010101000100
3101001201222210102
420212321111010
5243432222040
622155143232
73402333062
oct1046712504
9331658712
10144414020
1174577433
1240444b18
1323bc44aa
1415273032
15ca29515
hex89b9544

144414020 has 12 divisors (see below), whose sum is σ = 303269484. Its totient is φ = 57765600.

The previous prime is 144414019. The next prime is 144414043. The reversal of 144414020 is 20414441.

It is a happy number.

144414020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 92775424 + 51638596 = 9632^2 + 7186^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 7220701 = 144414020 / (1 + 4 + 4 + 4 + 1 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 144413983 and 144414001.

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, 3610331 + ... + 3610370.

It is an arithmetic number, because the mean of its divisors is an integer number (25272457).

Almost surely, 2144414020 is an apocalyptic number.

144414020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144414020 is an abundant number, since it is smaller than the sum of its proper divisors (158855464).

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

144414020 is a wasteful number, since it uses less digits than its factorization.

144414020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220710 (or 7220708 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 144414020 is about 12017.2384514913. The cubic root of 144414020 is about 524.6501312169.

Adding to 144414020 its reverse (20414441), we get a palindrome (164828461).

The spelling of 144414020 in words is "one hundred forty-four million, four hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 20 7220701 14441402 28882804 36103505 72207010 144414020