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71870765932 = 22723571089017
BaseRepresentation
bin100001011101111010…
…1001101101101101100
320212111210112012021201
41002323311031231230
52134142404002212
653003355535244
75123011300510
oct1027365155554
9225453465251
1071870765932
11285311a0219
1211b1945a524
136a14bb3a44
14369b270140
151d09996b57
hex10bbd4db6c

71870765932 has 24 divisors (see below), whose sum is σ = 143802648864. Its totient is φ = 30788660352.

The previous prime is 71870765927. The next prime is 71870765971. The reversal of 71870765932 is 23956707817.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478513 + ... + 610504.

It is an arithmetic number, because the mean of its divisors is an integer number (5991777036).

Almost surely, 271870765932 is an apocalyptic number.

It is an amenable number.

71870765932 is an abundant number, since it is smaller than the sum of its proper divisors (71931882932).

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

71870765932 is a wasteful number, since it uses less digits than its factorization.

71870765932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091385 (or 1091383 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 71870765932 in words is "seventy-one billion, eight hundred seventy million, seven hundred sixty-five thousand, nine hundred thirty-two".

Divisors: 1 2 4 7 14 28 2357 4714 9428 16499 32998 65996 1089017 2178034 4356068 7623119 15246238 30492476 2566813069 5133626138 10267252276 17967691483 35935382966 71870765932