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71143035460 = 22572287222197
BaseRepresentation
bin100001001000001110…
…1001001001001000100
320210122002011122202021
41002100131021021010
52131200104113320
652403242052524
75065663552360
oct1022035111104
9223562148667
1071143035460
1128198430582
12119557aa144
13692a1b56b3
14362c7582a0
151cb5b47daa
hex1090749244

71143035460 has 48 divisors (see below), whose sum is σ = 170818712064. Its totient is φ = 24381122688.

The previous prime is 71143035427. The next prime is 71143035527. The reversal of 71143035460 is 6453034117.

It is a super-2 number, since 2×711430354602 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209082 + ... + 431278.

It is an arithmetic number, because the mean of its divisors is an integer number (3558723168).

Almost surely, 271143035460 is an apocalyptic number.

71143035460 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71143035460 is an abundant number, since it is smaller than the sum of its proper divisors (99675676604).

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

71143035460 is a wasteful number, since it uses less digits than its factorization.

71143035460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224500 (or 224498 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 71143035460 its reverse (6453034117), we get a palindrome (77596069577).

The spelling of 71143035460 in words is "seventy-one billion, one hundred forty-three million, thirty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2287 4574 9148 11435 16009 22870 32018 45740 64036 80045 160090 222197 320180 444394 888788 1110985 1555379 2221970 3110758 4443940 6221516 7776895 15553790 31107580 508164539 1016329078 2032658156 2540822695 3557151773 5081645390 7114303546 10163290780 14228607092 17785758865 35571517730 71143035460