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80413893 = 3271775083
BaseRepresentation
bin1001100101100…
…00010011000101
312121022110010100
410302300103011
5131041221033
611551314313
71664335560
oct462602305
9177273110
1080413893
114143416a
1222b1b999
13138768b1
14a9734d7
1570d6513
hex4cb04c5

80413893 has 24 divisors (see below), whose sum is σ = 140557248. Its totient is φ = 43247232.

The previous prime is 80413891. The next prime is 80413901. The reversal of 80413893 is 39831408.

It is not a de Polignac number, because 80413893 - 21 = 80413891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80413891) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 36471 + ... + 38612.

It is an arithmetic number, because the mean of its divisors is an integer number (5856552).

Almost surely, 280413893 is an apocalyptic number.

It is an amenable number.

80413893 is a deficient number, since it is larger than the sum of its proper divisors (60143355).

80413893 is a wasteful number, since it uses less digits than its factorization.

80413893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75113 (or 75110 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 80413893 is about 8967.3793830751. The cubic root of 80413893 is about 431.6287480461.

The spelling of 80413893 in words is "eighty million, four hundred thirteen thousand, eight hundred ninety-three".

Divisors: 1 3 7 9 17 21 51 63 119 153 357 1071 75083 225249 525581 675747 1276411 1576743 3829233 4730229 8934877 11487699 26804631 80413893