Search a number
-
+
30444322000 = 245382118541
BaseRepresentation
bin11100010110100111…
…110111110011010000
32220120201100210120111
4130112213313303100
5444322221301000
621552543251104
72125303316161
oct342647676320
986521323514
1030444322000
1111a030317a4
125a978a9a94
132b42454521
14168b469768
15bd2b44cba
hex7169f7cd0

30444322000 has 80 divisors (see below), whose sum is σ = 73708010064. Its totient is φ = 12162240000.

The previous prime is 30444321997. The next prime is 30444322009. The reversal of 30444322000 is 22344403.

It can be written as a sum of positive squares in 8 ways, for example, as 13794032704 + 16650289296 = 117448^2 + 129036^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30444322009) 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, 1632730 + ... + 1651270.

Almost surely, 230444322000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30444322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36854005032).

30444322000 is an abundant number, since it is smaller than the sum of its proper divisors (43263688064).

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

30444322000 is a wasteful number, since it uses less digits than its factorization.

30444322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19385 (or 19369 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 30444322000 its reverse (22344403), we get a palindrome (30466666403).

The spelling of 30444322000 in words is "thirty billion, four hundred forty-four million, three hundred twenty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 821 1000 1642 2000 3284 4105 6568 8210 13136 16420 18541 20525 32840 37082 41050 65680 74164 82100 92705 102625 148328 164200 185410 205250 296656 328400 370820 410500 463525 741640 821000 927050 1483280 1642000 1854100 2317625 3708200 4635250 7416400 9270500 15222161 18541000 30444322 37082000 60888644 76110805 121777288 152221610 243554576 304443220 380554025 608886440 761108050 1217772880 1522216100 1902770125 3044432200 3805540250 6088864400 7611080500 15222161000 30444322000