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80743552 = 271274967
BaseRepresentation
bin1001101000000…
…00110010000000
312121221012022221
410310000302000
5131132243202
612002340424
72000210641
oct464006200
9177835287
1080743552
114163990a
122305a714
1313960966
14aa1b6c8
15714e037
hex4d00c80

80743552 has 32 divisors (see below), whose sum is σ = 162155520. Its totient is φ = 40045824.

The previous prime is 80743549. The next prime is 80743589. The reversal of 80743552 is 25534708.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13773 + ... + 18739.

It is an arithmetic number, because the mean of its divisors is an integer number (5067360).

Almost surely, 280743552 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 80743552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81077760).

80743552 is an abundant number, since it is smaller than the sum of its proper divisors (81411968).

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

80743552 is a wasteful number, since it uses less digits than its factorization.

80743552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108 (or 5096 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 80743552 is about 8985.7415943260. The cubic root of 80743552 is about 432.2177685779.

The spelling of 80743552 in words is "eighty million, seven hundred forty-three thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 127 128 254 508 1016 2032 4064 4967 8128 9934 16256 19868 39736 79472 158944 317888 630809 635776 1261618 2523236 5046472 10092944 20185888 40371776 80743552