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80824394 = 2721127361
BaseRepresentation
bin1001101000101…
…00100001001010
312122002022020002
410310110201022
5131142340034
612004203002
72000665430
oct464244112
9178068202
1080824394
1141694622
1223099462
131398b6b1
14aa3cd50
157167e7e
hex4d1484a

80824394 has 16 divisors (see below), whose sum is σ = 139217856. Its totient is φ = 34473600.

The previous prime is 80824379. The next prime is 80824397. The reversal of 80824394 is 49342808.

It is not an unprimeable number, because it can be changed into a prime (80824397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10727 + ... + 16634.

It is an arithmetic number, because the mean of its divisors is an integer number (8701116).

Almost surely, 280824394 is an apocalyptic number.

80824394 is a deficient number, since it is larger than the sum of its proper divisors (58393462).

80824394 is a wasteful number, since it uses less digits than its factorization.

80824394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27581.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 80824394 is about 8990.2388177400. The cubic root of 80824394 is about 432.3619687159.

It can be divided in two parts, 80824 and 394, that added together give a palindrome (81218).

The spelling of 80824394 in words is "eighty million, eight hundred twenty-four thousand, three hundred ninety-four".

Divisors: 1 2 7 14 211 422 1477 2954 27361 54722 191527 383054 5773171 11546342 40412197 80824394