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71040410340 = 223531197193877
BaseRepresentation
bin100001000101001010…
…1101010001011100100
320210100221001202112220
41002022111222023210
52130442321112330
652345134312340
75063306344644
oct1021225521344
9223327052486
1071040410340
1128145506829
12119273586b0
136911b63083
14361cc82524
151cabb25710
hex108a56a2e4

71040410340 has 96 divisors (see below), whose sum is σ = 206373049344. Its totient is φ = 18239854080.

The previous prime is 71040410321. The next prime is 71040410341. The reversal of 71040410340 is 4301404017.

It is a self number, because there is not a number n which added to its sum of digits gives 71040410340.

It is not an unprimeable number, because it can be changed into a prime (71040410341) 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, 269482 + ... + 463358.

It is an arithmetic number, because the mean of its divisors is an integer number (2149719264).

Almost surely, 271040410340 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 71040410340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103186524672).

71040410340 is an abundant number, since it is smaller than the sum of its proper divisors (135332639004).

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

71040410340 is a wasteful number, since it uses less digits than its factorization.

71040410340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194117 (or 194115 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 71040410340 its reverse (4301404017), we get a palindrome (75341814357).

The spelling of 71040410340 in words is "seventy-one billion, forty million, four hundred ten thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 197 310 372 394 465 591 620 788 930 985 1182 1860 1970 2364 2955 3940 5910 6107 11820 12214 18321 24428 30535 36642 61070 73284 91605 122140 183210 193877 366420 387754 581631 775508 969385 1163262 1938770 2326524 2908155 3877540 5816310 6010187 11632620 12020374 18030561 24040748 30050935 36061122 38193769 60101870 72122244 76387538 90152805 114581307 120203740 152775076 180305610 190968845 229162614 360611220 381937690 458325228 572906535 763875380 1145813070 1184006839 2291626140 2368013678 3552020517 4736027356 5920034195 7104041034 11840068390 14208082068 17760102585 23680136780 35520205170 71040410340