Search a number
-
+
144432211300 = 225213149745649
BaseRepresentation
bin1000011010000011010…
…1001010010101100100
3111210210201200112122021
42012200311022111210
54331244121230200
6150203511312524
713302110353066
oct2064065122544
9453721615567
10144432211300
1156287244093
1223baa07b744
1310809bc2630
146dc212d736
153b54dbe41a
hex21a0d4a564

144432211300 has 72 divisors (see below), whose sum is σ = 339792705000. Its totient is φ = 52970833920.

The previous prime is 144432211283. The next prime is 144432211307. The reversal of 144432211300 is 3112234441.

It can be written as a sum of positive squares in 12 ways, for example, as 113525868096 + 30906343204 = 336936^2 + 175802^2 .

It is a super-2 number, since 2×1444322113002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (144432211307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179125 + ... + 566524.

It is an arithmetic number, because the mean of its divisors is an integer number (4719343125).

Almost surely, 2144432211300 is an apocalyptic number.

144432211300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144432211300 is an abundant number, since it is smaller than the sum of its proper divisors (195360493700).

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

144432211300 is a wasteful number, since it uses less digits than its factorization.

144432211300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745825 (or 745818 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 144432211300 its reverse (3112234441), we get a palindrome (147544445741).

The spelling of 144432211300 in words is "one hundred forty-four billion, four hundred thirty-two million, two hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 149 260 298 325 596 650 745 1300 1490 1937 2980 3725 3874 7450 7748 9685 14900 19370 38740 48425 96850 193700 745649 1491298 2982596 3728245 7456490 9693437 14912980 18641225 19386874 37282450 38773748 48467185 74564900 96934370 111101701 193868740 222203402 242335925 444406804 484671850 555508505 969343700 1111017010 1444322113 2222034020 2777542525 2888644226 5555085050 5777288452 7221610565 11110170100 14443221130 28886442260 36108052825 72216105650 144432211300