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80656044 = 2237960191
BaseRepresentation
bin1001100111010…
…11011010101100
312121202202021220
410303223122230
5131121443134
612000423340
71666364550
oct463533254
9177682256
1080656044
114158a097
1223017b50
131392cb91
14a9d7860
157133149
hex4ceb6ac

80656044 has 24 divisors (see below), whose sum is σ = 215083008. Its totient is φ = 23044560.

The previous prime is 80656039. The next prime is 80656063. The reversal of 80656044 is 44065608.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80655996 and 80656014.

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, 480012 + ... + 480179.

It is an arithmetic number, because the mean of its divisors is an integer number (8961792).

Almost surely, 280656044 is an apocalyptic number.

80656044 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80656044 is an abundant number, since it is smaller than the sum of its proper divisors (134426964).

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

80656044 is a wasteful number, since it uses less digits than its factorization.

80656044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960205 (or 960203 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 80656044 is about 8980.8710045296. The cubic root of 80656044 is about 432.0615695853.

It can be divided in two parts, 8065604 and 4, that added together give a palindrome (8065608).

The spelling of 80656044 in words is "eighty million, six hundred fifty-six thousand, forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 960191 1920382 2880573 3840764 5761146 6721337 11522292 13442674 20164011 26885348 40328022 80656044