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80080920 = 2333574149
BaseRepresentation
bin1001100010111…
…11000000011000
312120200112101000
410301133000120
5131000042140
611540225000
71661451033
oct461370030
9176615330
1080080920
1141226a87
122299b160
131378b17a
14a8c801a
15706ca30
hex4c5f018

80080920 has 64 divisors (see below), whose sum is σ = 266940000. Its totient is φ = 21354624.

The previous prime is 80080901. The next prime is 80080937. The reversal of 80080920 is 2908008.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35995 + ... + 38154.

Almost surely, 280080920 is an apocalyptic number.

It is an amenable number.

80080920 is an abundant number, since it is smaller than the sum of its proper divisors (186859080).

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

80080920 is a wasteful number, since it uses less digits than its factorization.

80080920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74169 (or 74159 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 80080920 is about 8948.7943321992. The cubic root of 80080920 is about 431.0321697627.

Adding to 80080920 its reverse (2908008), we get a palindrome (82988928).

The spelling of 80080920 in words is "eighty million, eighty thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 74149 148298 222447 296596 370745 444894 593192 667341 741490 889788 1112235 1334682 1482980 1779576 2002023 2224470 2669364 2965960 3336705 4004046 4448940 5338728 6673410 8008092 8897880 10010115 13346820 16016184 20020230 26693640 40040460 80080920