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80838423 = 3282710861
BaseRepresentation
bin1001101000101…
…11111100010111
312122010000110200
410310113330113
5131143312143
612004351543
72001054351
oct464277427
9178100420
1080838423
11416a4116
12230a55b3
1313994bb3
14aa440d1
15716c1d3
hex4d17f17

80838423 has 12 divisors (see below), whose sum is σ = 116918568. Its totient is φ = 53822160.

The previous prime is 80838403. The next prime is 80838427. The reversal of 80838423 is 32483808.

It is a happy number.

It is not a de Polignac number, because 80838423 - 210 = 80837399 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80838427) 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, 2013 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (9743214).

Almost surely, 280838423 is an apocalyptic number.

80838423 is a deficient number, since it is larger than the sum of its proper divisors (36080145).

80838423 is a wasteful number, since it uses less digits than its factorization.

80838423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694 (or 11691 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 80838423 is about 8991.0190189989. The cubic root of 80838423 is about 432.3869828436.

The spelling of 80838423 in words is "eighty million, eight hundred thirty-eight thousand, four hundred twenty-three".

Divisors: 1 3 9 827 2481 7443 10861 32583 97749 8982047 26946141 80838423