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80285100 = 22352738231
BaseRepresentation
bin1001100100100…
…00110110101100
312121001220110020
410302100312230
5131023110400
611544442140
71663261230
oct462206654
9177056406
1080285100
1141356425
1222a79350
131383009c
14a93c5c0
1570ad2a0
hex4c90dac

80285100 has 72 divisors (see below), whose sum is σ = 265483008. Its totient is φ = 18350400.

The previous prime is 80285099. The next prime is 80285113. The reversal of 80285100 is 158208.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17016 + ... + 21215.

It is an arithmetic number, because the mean of its divisors is an integer number (3687264).

Almost surely, 280285100 is an apocalyptic number.

It is an amenable number.

80285100 is an abundant number, since it is smaller than the sum of its proper divisors (185197908).

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

80285100 is a wasteful number, since it uses less digits than its factorization.

80285100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38255 (or 38248 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 80285100 is about 8960.1953103713. The cubic root of 80285100 is about 431.3981889381.

The spelling of 80285100 in words is "eighty million, two hundred eighty-five thousand, one hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 38231 76462 114693 152924 191155 229386 267617 382310 458772 535234 573465 764620 802851 955775 1070468 1146930 1338085 1605702 1911550 2293860 2676170 2867325 3211404 3823100 4014255 5352340 5734650 6690425 8028510 11469300 13380850 16057020 20071275 26761700 40142550 80285100