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80028203 = 431861121
BaseRepresentation
bin1001100010100…
…10001000101011
312120120212001112
410301102020223
5130441400303
611535140535
71661141243
oct461221053
9176525045
1080028203
11411a0412
122297474b
1313770188
14a8b2b23
15705c0d8
hex4c5222b

80028203 has 4 divisors (see below), whose sum is σ = 81889368. Its totient is φ = 78167040.

The previous prime is 80028199. The next prime is 80028211. The reversal of 80028203 is 30282008.

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

It is a cyclic number.

It is not a de Polignac number, because 80028203 - 22 = 80028199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80028253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930518 + ... + 930603.

It is an arithmetic number, because the mean of its divisors is an integer number (20472342).

Almost surely, 280028203 is an apocalyptic number.

80028203 is a deficient number, since it is larger than the sum of its proper divisors (1861165).

80028203 is a wasteful number, since it uses less digits than its factorization.

80028203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861164.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 80028203 is about 8945.8483667006. The cubic root of 80028203 is about 430.9375666586.

The spelling of 80028203 in words is "eighty million, twenty-eight thousand, two hundred three".

Divisors: 1 43 1861121 80028203