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28750483 = 231250021
BaseRepresentation
bin110110110101…
…1001010010011
32000002200020201
41231223022103
524330003413
62504120031
7466242436
oct155531223
960080221
1028750483
1115257733
129766017
135c58328
143b6581d
1527cd9dd
hex1b6b293

28750483 has 4 divisors (see below), whose sum is σ = 30000528. Its totient is φ = 27500440.

The previous prime is 28750441. The next prime is 28750487. The reversal of 28750483 is 38405782.

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 28750483 - 217 = 28619411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28750487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624988 + ... + 625033.

It is an arithmetic number, because the mean of its divisors is an integer number (7500132).

Almost surely, 228750483 is an apocalyptic number.

28750483 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28750483 is a deficient number, since it is larger than the sum of its proper divisors (1250045).

28750483 is a wasteful number, since it uses less digits than its factorization.

28750483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250044.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 28750483 is about 5361.9476871749. The cubic root of 28750483 is about 306.3479992910.

The spelling of 28750483 in words is "twenty-eight million, seven hundred fifty thousand, four hundred eighty-three".

Divisors: 1 23 1250021 28750483