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80115424 = 251728663
BaseRepresentation
bin1001100011001…
…11011011100000
312120202021200221
410301213123200
5131002143144
611541052424
71661653444
oct461473340
9176667627
1080115424
114124a9a4
12229b7114
13137a0a9c
14a8d6824
157077d84
hex4c676e0

80115424 has 36 divisors (see below), whose sum is σ = 167570424. Its totient is φ = 37697024.

The previous prime is 80115391. The next prime is 80115433. The reversal of 80115424 is 42451108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4917 + ... + 13579.

It is an arithmetic number, because the mean of its divisors is an integer number (4654734).

Almost surely, 280115424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80115424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83785212).

80115424 is an abundant number, since it is smaller than the sum of its proper divisors (87455000).

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

80115424 is a wasteful number, since it uses less digits than its factorization.

80115424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707 (or 8682 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 80115424 is about 8950.7219820526. The cubic root of 80115424 is about 431.0940663148.

The spelling of 80115424 in words is "eighty million, one hundred fifteen thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 289 544 578 1156 2312 4624 8663 9248 17326 34652 69304 138608 147271 277216 294542 589084 1178168 2356336 2503607 4712672 5007214 10014428 20028856 40057712 80115424