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80284706 = 240142353
BaseRepresentation
bin1001100100100…
…00110000100010
312121001212220122
410302100300202
5131023102311
611544440242
71663260125
oct462206042
9177055818
1080284706
11413560a7
1222a79082
131382cb58
14a93c3bc
1570ad0db
hex4c90c22

80284706 has 4 divisors (see below), whose sum is σ = 120427062. Its totient is φ = 40142352.

The previous prime is 80284703. The next prime is 80284751. The reversal of 80284706 is 60748208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80263681 + 21025 = 8959^2 + 145^2 .

It is not an unprimeable number, because it can be changed into a prime (80284703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071175 + ... + 20071178.

Almost surely, 280284706 is an apocalyptic number.

80284706 is a deficient number, since it is larger than the sum of its proper divisors (40142356).

80284706 is a wasteful number, since it uses less digits than its factorization.

80284706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40142355.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 80284706 is about 8960.1733242164. The cubic root of 80284706 is about 431.3974832398.

The spelling of 80284706 in words is "eighty million, two hundred eighty-four thousand, seven hundred six".

Divisors: 1 2 40142353 80284706