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71409317316480 = 27355111317199941
BaseRepresentation
bin10000001111001001000110…
…111111100000011110000000
3100100211122221002210021200000
4100033021012333200132000
533324432240213111410
6411512553144400000
721020103311125053
oct2017110677403600
9310748832707600
1071409317316480
1120831580a96170
12801372ba76000
1330acb3ca427a0
14138c32d686a9a
1583c7c0b11dc0
hex40f246fe0780

71409317316480 has 3072 divisors, whose sum is σ = 334871629747200. Its totient is φ = 14246726860800.

The previous prime is 71409317316349. The next prime is 71409317316481. The reversal of 71409317316480 is 8461371390417.

71409317316480 is a `hidden beast` number, since 7 + 1 + 4 + 0 + 9 + 317 + 316 + 4 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71409317316481) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 7183308310 + ... + 7183318250.

It is an arithmetic number, because the mean of its divisors is an integer number (109007691975).

Almost surely, 271409317316480 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 71409317316480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167435814873600).

71409317316480 is an abundant number, since it is smaller than the sum of its proper divisors (263462312430720).

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

71409317316480 is a wasteful number, since it uses less digits than its factorization.

71409317316480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035 (or 10011 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 71409317316480 in words is "seventy-one trillion, four hundred nine billion, three hundred seventeen million, three hundred sixteen thousand, four hundred eighty".