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80647929060 = 22354132783711
BaseRepresentation
bin100101100011011111…
…1011011110011100100
321201011111022021120120
41023012333123303210
52310131332212220
6101014341001540
75553350041416
oct1130677336344
9251144267516
1080647929060
1131225720846
12137689b32b0
1377b34422aa
143c90c3a9b6
152170307a40
hex12c6fdbce4

80647929060 has 48 divisors (see below), whose sum is σ = 231321871872. Its totient is φ = 20981574400.

The previous prime is 80647929029. The next prime is 80647929079. The reversal of 80647929060 is 6092974608.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80647928994 and 80647929012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16389396 + ... + 16394315.

It is an arithmetic number, because the mean of its divisors is an integer number (4819205664).

Almost surely, 280647929060 is an apocalyptic number.

It is an amenable number.

80647929060 is an abundant number, since it is smaller than the sum of its proper divisors (150673942812).

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

80647929060 is a wasteful number, since it uses less digits than its factorization.

80647929060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32783764 (or 32783762 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 80647929060 in words is "eighty billion, six hundred forty-seven million, nine hundred twenty-nine thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 32783711 65567422 98351133 131134844 163918555 196702266 327837110 393404532 491755665 655674220 983511330 1344132151 1967022660 2688264302 4032396453 5376528604 6720660755 8064792906 13441321510 16129585812 20161982265 26882643020 40323964530 80647929060