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82037840740 = 22529141444553
BaseRepresentation
bin100110001100111010…
…1100001101101100100
321211202100200002221221
41030121311201231210
52321003141400430
6101404311350124
75632655066152
oct1143165415544
9254670602857
1082037840740
1131879249a89
1213a96382344
13797539ac3b
143d836843d2
15220235857a
hex1319d61b64

82037840740 has 24 divisors (see below), whose sum is σ = 178220138040. Its totient is φ = 31683579648.

The previous prime is 82037840719. The next prime is 82037840747. The reversal of 82037840740 is 4704873028.

It can be written as a sum of positive squares in 4 ways, for example, as 12877256484 + 69160584256 = 113478^2 + 262984^2 .

It is not an unprimeable number, because it can be changed into a prime (82037840747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70721697 + ... + 70722856.

It is an arithmetic number, because the mean of its divisors is an integer number (7425839085).

Almost surely, 282037840740 is an apocalyptic number.

It is an amenable number.

82037840740 is an abundant number, since it is smaller than the sum of its proper divisors (96182297300).

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

82037840740 is a wasteful number, since it uses less digits than its factorization.

82037840740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141444591 (or 141444589 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 82037840740 in words is "eighty-two billion, thirty-seven million, eight hundred forty thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 141444553 282889106 565778212 707222765 1414445530 2828891060 4101892037 8203784074 16407568148 20509460185 41018920370 82037840740