Search a number
-
+
144000331 = 798812069
BaseRepresentation
bin10001001010101…
…00010101001011
3101000221222022121
420211110111023
5243331002311
622142232111
73365661016
oct1045242513
9330858277
10144000331
1174314642
1240285637
1323aab0c7
14151a637d
15c996b71
hex895454b

144000331 has 8 divisors (see below), whose sum is σ = 146059200. Its totient is φ = 141947520.

The previous prime is 144000313. The next prime is 144000343. The reversal of 144000331 is 133000441.

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

It is a cyclic number.

It is not a de Polignac number, because 144000331 - 27 = 144000203 is a prime.

It is a super-2 number, since 2×1440003312 = 41472190656219122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144000371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68565 + ... + 70633.

It is an arithmetic number, because the mean of its divisors is an integer number (18257400).

Almost surely, 2144000331 is an apocalyptic number.

144000331 is a deficient number, since it is larger than the sum of its proper divisors (2058869).

144000331 is an equidigital number, since it uses as much as digits as its factorization.

144000331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 144000331 is about 12000.0137916587. The cubic root of 144000331 is about 524.1486804458.

Adding to 144000331 its reverse (133000441), we get a palindrome (277000772).

The spelling of 144000331 in words is "one hundred forty-four million, three hundred thirty-one", and thus it is an aban number.

Divisors: 1 79 881 2069 69599 163451 1822789 144000331