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80448804 = 22323760397
BaseRepresentation
bin1001100101110…
…00110100100100
312121101020000100
410302320310210
5131043330204
611552144100
71664542422
oct462706444
9177336010
1080448804
1141458417
1222b38030
1313889757
14a982112
1570e1a39
hex4cb8d24

80448804 has 36 divisors (see below), whose sum is σ = 208856284. Its totient is φ = 26091072.

The previous prime is 80448787. The next prime is 80448817. The reversal of 80448804 is 40884408.

It can be written as a sum of positive squares in 2 ways, for example, as 46785600 + 33663204 = 6840^2 + 5802^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28867 + ... + 31530.

Almost surely, 280448804 is an apocalyptic number.

It is an amenable number.

80448804 is an abundant number, since it is smaller than the sum of its proper divisors (128407480).

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

80448804 is a wasteful number, since it uses less digits than its factorization.

80448804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60444 (or 60439 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 80448804 is about 8969.3257271659. The cubic root of 80448804 is about 431.6912016452.

The spelling of 80448804 in words is "eighty million, four hundred forty-eight thousand, eight hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 60397 120794 181191 241588 362382 543573 724764 1087146 2174292 2234689 4469378 6704067 8938756 13408134 20112201 26816268 40224402 80448804