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71008220795904 = 21034723371371049
BaseRepresentation
bin10000001001010011100011…
…110001101101010000000000
3100022102022121222220220020000
4100021103203301231100000
533301344314010432104
6411004420514120000
720646113623012050
oct2011234361552000
9308368558826200
1071008220795904
1120697465505717
127b69a51580000
13308107b1a1402
141376b5da0d560
15832147d1d639
hex4094e3c6d400

71008220795904 has 1760 divisors, whose sum is σ = 261852318604800. Its totient is φ = 18725798412288.

The previous prime is 71008220795887. The next prime is 71008220795921. The reversal of 71008220795904 is 40959702280017.

It is an interprime number because it is at equal distance from previous prime (71008220795887) and next prime (71008220795921).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 67691344372 + ... + 67691345420.

It is an arithmetic number, because the mean of its divisors is an integer number (148779726480).

Almost surely, 271008220795904 is an apocalyptic number.

71008220795904 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71008220795904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130926159302400).

71008220795904 is an abundant number, since it is smaller than the sum of its proper divisors (190844097808896).

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

71008220795904 is a wasteful number, since it uses less digits than its factorization.

71008220795904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 71008220795904 in words is "seventy-one trillion, eight billion, two hundred twenty million, seven hundred ninety-five thousand, nine hundred four".