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71920261794 = 2311986710299
BaseRepresentation
bin100001011111011001…
…0000001101010100010
320212122020122211211210
41002332302001222202
52134243041334134
653012324450550
75124152065353
oct1027662015242
9225566584753
1071920261794
1128557127197
1211b31b49a56
136a22223834
1436a3a75d2a
151d0dec22e9
hex10bec81aa2

71920261794 has 8 divisors (see below), whose sum is σ = 143840523600. Its totient is φ = 23973420596.

The previous prime is 71920261789. The next prime is 71920261811. The reversal of 71920261794 is 49716202917.

It is a sphenic number, since it is the product of 3 distinct primes.

71920261794 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993355144 + ... + 5993355155.

It is an arithmetic number, because the mean of its divisors is an integer number (17980065450).

Almost surely, 271920261794 is an apocalyptic number.

71920261794 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71920261794 is a wasteful number, since it uses less digits than its factorization.

71920261794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986710304.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 71920261794 in words is "seventy-one billion, nine hundred twenty million, two hundred sixty-one thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 11986710299 23973420598 35960130897 71920261794