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80903032 = 2371444697
BaseRepresentation
bin1001101001001…
…11101101111000
312122020022002121
410310213231320
5131202344112
612010011024
72001443620
oct464475570
9178208077
1080903032
1141738711
1223116a74
13139b8422
14aa5d880
157181407
hex4d27b78

80903032 has 16 divisors (see below), whose sum is σ = 173363760. Its totient is φ = 34672704.

The previous prime is 80903003. The next prime is 80903057. The reversal of 80903032 is 23030908.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80902988 and 80903006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722293 + ... + 722404.

It is an arithmetic number, because the mean of its divisors is an integer number (10835235).

Almost surely, 280903032 is an apocalyptic number.

It is an amenable number.

80903032 is an abundant number, since it is smaller than the sum of its proper divisors (92460728).

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

80903032 is a wasteful number, since it uses less digits than its factorization.

80903032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444710 (or 1444706 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 80903032 is about 8994.6112756472. The cubic root of 80903032 is about 432.5021452888.

The spelling of 80903032 in words is "eighty million, nine hundred three thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 1444697 2889394 5778788 10112879 11557576 20225758 40451516 80903032