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71928714 = 23111383833
BaseRepresentation
bin1000100100110…
…00101110001010
312000100100122110
410102120232022
5121403204324
611045403150
71532245464
oct422305612
9160310573
1071928714
1137669120
12201094b6
1311b95690
1497a5134
1564ac329
hex4498b8a

71928714 has 32 divisors (see below), whose sum is σ = 169009344. Its totient is φ = 20119680.

The previous prime is 71928709. The next prime is 71928733. The reversal of 71928714 is 41782917.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41059 + ... + 42774.

It is an arithmetic number, because the mean of its divisors is an integer number (5281542).

Almost surely, 271928714 is an apocalyptic number.

71928714 is an abundant number, since it is smaller than the sum of its proper divisors (97080630).

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

71928714 is a wasteful number, since it uses less digits than its factorization.

71928714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83862.

The product of its digits is 28224, while the sum is 39.

The square root of 71928714 is about 8481.0797661619. The cubic root of 71928714 is about 415.8794221852.

The spelling of 71928714 in words is "seventy-one million, nine hundred twenty-eight thousand, seven hundred fourteen".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 83833 167666 251499 502998 922163 1089829 1844326 2179658 2766489 3269487 5532978 6538974 11988119 23976238 35964357 71928714