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80163420 = 22351336057
BaseRepresentation
bin1001100011100…
…11001001011100
312120211201112120
410301303021130
5131010212140
611542102540
71662243411
oct461631134
9176751476
1080163420
1141282a67
1222a1aa50
13137b989c
14a90a108
1570871d0
hex4c7325c

80163420 has 24 divisors (see below), whose sum is σ = 224457744. Its totient is φ = 21376896.

The previous prime is 80163409. The next prime is 80163439. The reversal of 80163420 is 2436108.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 667969 + ... + 668088.

It is an arithmetic number, because the mean of its divisors is an integer number (9352406).

Almost surely, 280163420 is an apocalyptic number.

It is an amenable number.

80163420 is an abundant number, since it is smaller than the sum of its proper divisors (144294324).

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

80163420 is a wasteful number, since it uses less digits than its factorization.

80163420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336069 (or 1336067 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 80163420 is about 8953.4027051172. The cubic root of 80163420 is about 431.1801365507.

Adding to 80163420 its reverse (2436108), we get a palindrome (82599528).

The spelling of 80163420 in words is "eighty million, one hundred sixty-three thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1336057 2672114 4008171 5344228 6680285 8016342 13360570 16032684 20040855 26721140 40081710 80163420