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71881700676 = 22319315270617
BaseRepresentation
bin100001011110001111…
…0111011010101000100
320212112120002201221020
41002330132323111010
52134203203410201
653004430151140
75123203242312
oct1027436732504
9225476081836
1071881700676
11285373896a5
1211b210524b0
136a17241bc6
14369c8b90b2
151d0a906a36
hex10bc7bb544

71881700676 has 24 divisors (see below), whose sum is σ = 176551546080. Its totient is φ = 22699484352.

The previous prime is 71881700669. The next prime is 71881700677. The reversal of 71881700676 is 67600718817.

It is not an unprimeable number, because it can be changed into a prime (71881700677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157635081 + ... + 157635536.

It is an arithmetic number, because the mean of its divisors is an integer number (7356314420).

Almost surely, 271881700676 is an apocalyptic number.

71881700676 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71881700676 is an abundant number, since it is smaller than the sum of its proper divisors (104669845404).

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

71881700676 is a wasteful number, since it uses less digits than its factorization.

71881700676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315270643 (or 315270641 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 51.

The spelling of 71881700676 in words is "seventy-one billion, eight hundred eighty-one million, seven hundred thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 315270617 630541234 945811851 1261082468 1891623702 3783247404 5990141723 11980283446 17970425169 23960566892 35940850338 71881700676