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80716080 = 2435336317
BaseRepresentation
bin1001100111110…
…10000100110000
312121212210122110
410303322010300
5131130403310
612002005320
72000034564
oct463720460
9177783573
1080716080
1141620205
1223046840
13139512c3
14aa116a4
157145d20
hex4cfa130

80716080 has 40 divisors (see below), whose sum is σ = 250220592. Its totient is φ = 21524224.

The previous prime is 80716079. The next prime is 80716169. The reversal of 80716080 is 8061708.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167919 + ... + 168398.

Almost surely, 280716080 is an apocalyptic number.

80716080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80716080 is an abundant number, since it is smaller than the sum of its proper divisors (169504512).

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

80716080 is a wasteful number, since it uses less digits than its factorization.

80716080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336333 (or 336327 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 80716080 is about 8984.2128202754. The cubic root of 80716080 is about 432.1687440918.

Adding to 80716080 its reverse (8061708), we get a palindrome (88777788).

The spelling of 80716080 in words is "eighty million, seven hundred sixteen thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 336317 672634 1008951 1345268 1681585 2017902 2690536 3363170 4035804 5044755 5381072 6726340 8071608 10089510 13452680 16143216 20179020 26905360 40358040 80716080