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80282820 = 22352295843
BaseRepresentation
bin1001100100100…
…00010011000100
312121001210022210
410302100103010
5131023022240
611544423420
71663251462
oct462202304
9177053283
1080282820
1141354742
1222a77b70
131382c037
14a93b832
1570ac780
hex4c904c4

80282820 has 48 divisors (see below), whose sum is σ = 225812160. Its totient is φ = 21311616.

The previous prime is 80282791. The next prime is 80282833. The reversal of 80282820 is 2828208.

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 15 ways as a sum of consecutive naturals, for example, 10819 + ... + 16661.

It is an arithmetic number, because the mean of its divisors is an integer number (4704420).

Almost surely, 280282820 is an apocalyptic number.

It is an amenable number.

80282820 is an abundant number, since it is smaller than the sum of its proper divisors (145529340).

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

80282820 is a wasteful number, since it uses less digits than its factorization.

80282820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084 (or 6082 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 80282820 is about 8960.0680800985. The cubic root of 80282820 is about 431.3941051700.

The spelling of 80282820 in words is "eighty million, two hundred eighty-two thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 229 458 687 916 1145 1374 2290 2748 3435 4580 5843 6870 11686 13740 17529 23372 29215 35058 58430 70116 87645 116860 175290 350580 1338047 2676094 4014141 5352188 6690235 8028282 13380470 16056564 20070705 26760940 40141410 80282820