Search a number
-
+
144438002500 = 22541126912
BaseRepresentation
bin1000011010000100101…
…1010000001101000100
3111210211010120202200011
42012201023100031010
54331302112040000
6150204235400004
713302210523051
oct2064113201504
9453733522604
10144438002500
115628a53a100
1223babbb3004
131080b16c58c
146dc2bda028
153b556652ba
hex21a12d0344

144438002500 has 135 divisors (see below), whose sum is σ = 347684848203. Its totient is φ = 52446900000.

The previous prime is 144438002477. The next prime is 144438002503. The reversal of 144438002500 is 5200834441.

The square root of 144438002500 is 380050.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 11323939396 + 133114063104 = 106414^2 + 364848^2 .

It is not an unprimeable number, because it can be changed into a prime (144438002503) 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 44 ways as a sum of consecutive naturals, for example, 209027155 + ... + 209027845.

Almost surely, 2144438002500 is an apocalyptic number.

144438002500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144438002500 is the 380050-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144438002500

144438002500 is an abundant number, since it is smaller than the sum of its proper divisors (203246845703).

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

144438002500 is an frugal number, since it uses more digits than its factorization.

144438002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 144438002500 its reverse (5200834441), we get a palindrome (149638836941).

The spelling of 144438002500 in words is "one hundred forty-four billion, four hundred thirty-eight million, two thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 125 220 242 250 275 484 500 550 605 625 691 1100 1210 1250 1375 1382 2420 2500 2750 2764 3025 3455 5500 6050 6875 6910 7601 12100 13750 13820 15125 15202 17275 27500 30250 30404 34550 38005 60500 69100 75625 76010 83611 86375 151250 152020 167222 172750 190025 302500 334444 345500 380050 418055 431875 477481 760100 836110 863750 950125 954962 1672220 1727500 1900250 1909924 2090275 2387405 3800500 4180550 4750625 4774810 5252291 8361100 9501250 9549620 10451375 10504582 11937025 19002500 20902750 21009164 23874050 26261455 41805500 47748100 52256875 52522910 57775201 59685125 104513750 105045820 115550402 119370250 131307275 209027500 231100804 238740500 262614550 288876005 298425625 525229100 577752010 596851250 656536375 1155504020 1193702500 1313072750 1444380025 2626145500 2888760050 3282681875 5777520100 6565363750 7221900125 13130727500 14443800250 28887600500 36109500625 72219001250 144438002500