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80838712 = 2310104839
BaseRepresentation
bin1001101000110…
…00000000111000
312122010000212101
410310120000320
5131143314322
612004353144
72001055243
oct464300070
9178100771
1080838712
11416a4359
12230a57b4
1313995076
14aa4425a
15716c327
hex4d18038

80838712 has 8 divisors (see below), whose sum is σ = 151572600. Its totient is φ = 40419352.

The previous prime is 80838701. The next prime is 80838739. The reversal of 80838712 is 21783808.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052412 + ... + 5052427.

It is an arithmetic number, because the mean of its divisors is an integer number (18946575).

Almost surely, 280838712 is an apocalyptic number.

It is an amenable number.

80838712 is a deficient number, since it is larger than the sum of its proper divisors (70733888).

80838712 is a wasteful number, since it uses less digits than its factorization.

80838712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104845 (or 10104841 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 80838712 is about 8991.0350905777. The cubic root of 80838712 is about 432.3874981089.

The spelling of 80838712 in words is "eighty million, eight hundred thirty-eight thousand, seven hundred twelve".

Divisors: 1 2 4 8 10104839 20209678 40419356 80838712