Search a number
-
+
144472900 = 2252111310103
BaseRepresentation
bin10001001110001…
…11101101000100
3101001211222120011
420213013231010
5243441113100
622200320004
73402666535
oct1047075504
9331758504
10144472900
11746076a0
1240473004
1323c15230
141528a68c
15ca3bbba
hex89c7b44

144472900 has 72 divisors (see below), whose sum is σ = 368351424. Its totient is φ = 48489600.

The previous prime is 144472891. The next prime is 144472907. The reversal of 144472900 is 9274441.

It is not an unprimeable number, because it can be changed into a prime (144472907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9249 + ... + 19351.

It is an arithmetic number, because the mean of its divisors is an integer number (5115992).

Almost surely, 2144472900 is an apocalyptic number.

144472900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144472900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184175712).

144472900 is an abundant number, since it is smaller than the sum of its proper divisors (223878524).

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

144472900 is a wasteful number, since it uses less digits than its factorization.

144472900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141 (or 10134 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 144472900 is about 12019.6880159179. The cubic root of 144472900 is about 524.7214243927.

It can be divided in two parts, 1444 and 72900, that multiplied together give a square (105267600 = 102602).

The spelling of 144472900 in words is "one hundred forty-four million, four hundred seventy-two thousand, nine hundred".

Divisors: 1 2 4 5 10 11 13 20 22 25 26 44 50 52 55 65 100 110 130 143 220 260 275 286 325 550 572 650 715 1100 1300 1430 2860 3575 7150 10103 14300 20206 40412 50515 101030 111133 131339 202060 222266 252575 262678 444532 505150 525356 555665 656695 1010300 1111330 1313390 1444729 2222660 2626780 2778325 2889458 3283475 5556650 5778916 6566950 7223645 11113300 13133900 14447290 28894580 36118225 72236450 144472900