Search a number
-
+
144441654 = 23710732141
BaseRepresentation
bin10001001110000…
…00000100110110
3101001210101200220
420213000010312
5243434113104
622155515210
73402506460
oct1047000466
9331711626
10144441654
1174596175
1240458b06
1323c03c46
141527d130
15ca327d9
hex89c0136

144441654 has 32 divisors (see below), whose sum is σ = 333248256. Its totient is φ = 40882080.

The previous prime is 144441653. The next prime is 144441659. The reversal of 144441654 is 456144441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144441653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11577 + ... + 20564.

It is an arithmetic number, because the mean of its divisors is an integer number (10414008).

Almost surely, 2144441654 is an apocalyptic number.

144441654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

144441654 is an abundant number, since it is smaller than the sum of its proper divisors (188806602).

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

144441654 is a wasteful number, since it uses less digits than its factorization.

144441654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32260.

The product of its digits is 30720, while the sum is 33.

The square root of 144441654 is about 12018.3881614799. The cubic root of 144441654 is about 524.6835934737.

The spelling of 144441654 in words is "one hundred forty-four million, four hundred forty-one thousand, six hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 107 214 321 642 749 1498 2247 4494 32141 64282 96423 192846 224987 449974 674961 1349922 3439087 6878174 10317261 20634522 24073609 48147218 72220827 144441654