Search a number
-
+
144620 = 22571033
BaseRepresentation
bin100011010011101100
321100101022
4203103230
514111440
63033312
71141430
oct432354
9240338
10144620
1199723
126b838
1350a98
143a9c0
152ccb5
hex234ec

144620 has 24 divisors (see below), whose sum is σ = 347424. Its totient is φ = 49536.

The previous prime is 144611. The next prime is 144629. The reversal of 144620 is 26441.

144620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144611) and next prime (144629).

It is not an unprimeable number, because it can be changed into a prime (144629) by changing a digit.

144620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (14476).

2144620 is an apocalyptic number.

144620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144620 is an abundant number, since it is smaller than the sum of its proper divisors (202804).

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

144620 is a wasteful number, since it uses less digits than its factorization.

144620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 144620 is about 380.2893635115. The cubic root of 144620 is about 52.4899451644.

It can be divided in two parts, 1446 and 20, that multiplied together give a triangular number (28920 = T240).

The spelling of 144620 in words is "one hundred forty-four thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1033 2066 4132 5165 7231 10330 14462 20660 28924 36155 72310 144620