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82307412 = 223211207847
BaseRepresentation
bin1001110011111…
…10100101010100
312201212122112200
410321332211110
5132032314122
612100044500
72016413205
oct471764524
9181778480
1082307412
1142507860
1223693730
131408a715
14ad075ac
15735c5ac
hex4e7e954

82307412 has 36 divisors (see below), whose sum is σ = 226970016. Its totient is φ = 24941520.

The previous prime is 82307371. The next prime is 82307413. The reversal of 82307412 is 21470328.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82307413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103528 + ... + 104319.

Almost surely, 282307412 is an apocalyptic number.

It is an amenable number.

82307412 is an abundant number, since it is smaller than the sum of its proper divisors (144662604).

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

82307412 is a wasteful number, since it uses less digits than its factorization.

82307412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207868 (or 207863 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 82307412 is about 9072.3432474747. The cubic root of 82307412 is about 434.9903763230.

The spelling of 82307412 in words is "eighty-two million, three hundred seven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 207847 415694 623541 831388 1247082 1870623 2286317 2494164 3741246 4572634 6858951 7482492 9145268 13717902 20576853 27435804 41153706 82307412