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144041420 = 22559122069
BaseRepresentation
bin10001001010111…
…10010111001100
3101001001001200102
420211132113030
5243333311140
622143150232
73366221555
oct1045362714
9331031612
10144041420
11743424a6
12402a5378
1323ac3a13
14151b732c
15c9a3e15
hex895e5cc

144041420 has 24 divisors (see below), whose sum is σ = 307616400. Its totient is φ = 56639552.

The previous prime is 144041399. The next prime is 144041423. The reversal of 144041420 is 24140441.

It is a happy number.

144041420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 144041392 and 144041401.

It is not an unprimeable number, because it can be changed into a prime (144041423) 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, 59855 + ... + 62214.

It is an arithmetic number, because the mean of its divisors is an integer number (12817350).

Almost surely, 2144041420 is an apocalyptic number.

144041420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144041420 is an abundant number, since it is smaller than the sum of its proper divisors (163574980).

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

144041420 is a wasteful number, since it uses less digits than its factorization.

144041420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122137 (or 122135 counting only the distinct ones).

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

The square root of 144041420 is about 12001.7257092470. The cubic root of 144041420 is about 524.1985291670.

Adding to 144041420 its reverse (24140441), we get a palindrome (168181861).

The spelling of 144041420 in words is "one hundred forty-four million, forty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 122069 244138 488276 610345 1220690 2441380 7202071 14404142 28808284 36010355 72020710 144041420