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71085701730 = 23517313696667
BaseRepresentation
bin100001000110100001…
…0011011101001100010
320210111002021210122210
41002031002123221202
52131040414423410
652353433142550
75064366331551
oct1021502335142
9223432253583
1071085701730
112816903092a
121193a55aa56
13691b360204
143624cb1d98
151cb0ac0220
hex108d09ba62

71085701730 has 32 divisors (see below), whose sum is σ = 171591856704. Its totient is φ = 18846612416.

The previous prime is 71085701707. The next prime is 71085701767. The reversal of 71085701730 is 3710758017.

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, 6843144 + ... + 6853523.

It is an arithmetic number, because the mean of its divisors is an integer number (5362245522).

Almost surely, 271085701730 is an apocalyptic number.

71085701730 is an abundant number, since it is smaller than the sum of its proper divisors (100506154974).

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

71085701730 is a wasteful number, since it uses less digits than its factorization.

71085701730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13696850.

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 71085701730 in words is "seventy-one billion, eighty-five million, seven hundred one thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 173 346 519 865 1038 1730 2595 5190 13696667 27393334 41090001 68483335 82180002 136966670 205450005 410900010 2369523391 4739046782 7108570173 11847616955 14217140346 23695233910 35542850865 71085701730