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200030040440 = 235231934432543
BaseRepresentation
bin1011101001001010111…
…0000011000101111000
3201010022102210220020022
42322102232003011320
511234130142243230
6231520441550012
720310634201316
oct2722256030570
9633272726208
10200030040440
117791781a00a
12329257a5308
1315b2a609699
1499780a10b6
15530ae0a1e5
hex2e92b83178

200030040440 has 128 divisors (see below), whose sum is σ = 473320765440. Its totient is φ = 75934949376.

The previous prime is 200030040407. The next prime is 200030040449. The reversal of 200030040440 is 44040030002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200030040449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78657809 + ... + 78660351.

It is an arithmetic number, because the mean of its divisors is an integer number (3697818480).

Almost surely, 2200030040440 is an apocalyptic number.

200030040440 is a gapful number since it is divisible by the number (20) 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 200030040440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236660382720).

200030040440 is an abundant number, since it is smaller than the sum of its proper divisors (273290725000).

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

200030040440 is a wasteful number, since it uses less digits than its factorization.

200030040440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 200030040440 its reverse (44040030002), we get a palindrome (244070070442).

The spelling of 200030040440 in words is "two hundred billion, thirty million, forty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 193 230 386 443 460 772 886 920 965 1544 1772 1930 2215 2543 3544 3860 4430 4439 5086 7720 8860 8878 10172 10189 12715 17720 17756 20344 20378 22195 25430 35512 40756 44390 50860 50945 58489 81512 85499 88780 101720 101890 116978 170998 177560 203780 233956 292445 341996 407560 427495 467912 490799 584890 683992 854990 981598 1126549 1169780 1709980 1963196 1966477 2253098 2339560 2453995 3419960 3926392 3932954 4506196 4907990 5632745 7865908 9012392 9815980 9832385 11265490 11288377 15731816 19631960 19664770 22530980 22576754 25910627 39329540 45061960 45153508 51821254 56441885 78659080 90307016 103642508 112883770 129553135 207285016 217423957 225767540 259106270 434847914 451535080 518212540 869695828 1036425080 1087119785 1739391656 2174239570 4348479140 5000751011 8696958280 10001502022 20003004044 25003755055 40006008088 50007510110 100015020220 200030040440