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144234020 = 22573472969
BaseRepresentation
bin10001001100011…
…01011000100100
3101001101211212202
420212031120210
5243410442040
622151234032
73400653230
oct1046153044
9331354782
10144234020
1174464177
1240378918
1323b60598
14152275c0
15c9e1015
hex898d624

144234020 has 48 divisors (see below), whose sum is σ = 347276160. Its totient is φ = 49292544.

The previous prime is 144234019. The next prime is 144234031. The reversal of 144234020 is 20432441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 144233983 and 144234001.

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 15 ways as a sum of consecutive naturals, for example, 47096 + ... + 50064.

It is an arithmetic number, because the mean of its divisors is an integer number (7234920).

Almost surely, 2144234020 is an apocalyptic number.

144234020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144234020 is an abundant number, since it is smaller than the sum of its proper divisors (203042140).

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

144234020 is a wasteful number, since it uses less digits than its factorization.

144234020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332 (or 3330 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 144234020 is about 12009.7468749345. The cubic root of 144234020 is about 524.4320630848.

Adding to 144234020 its reverse (20432441), we get a palindrome (164666461).

The spelling of 144234020 in words is "one hundred forty-four million, two hundred thirty-four thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 347 694 1388 1735 2429 2969 3470 4858 5938 6940 9716 11876 12145 14845 20783 24290 29690 41566 48580 59380 83132 103915 207830 415660 1030243 2060486 4120972 5151215 7211701 10302430 14423402 20604860 28846804 36058505 72117010 144234020