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28732063 = 79367991
BaseRepresentation
bin110110110011…
…0101010011111
32000001201222111
41231212222133
524323411223
62503454451
7466134643
oct155465237
960051874
1028732063
1115244908
129757427
135c4cb29
143b5cc23
1527c830d
hex1b66a9f

28732063 has 8 divisors (see below), whose sum is σ = 29204480. Its totient is φ = 28262520.

The previous prime is 28732061. The next prime is 28732097. The reversal of 28732063 is 36023782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28732063 - 21 = 28732061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28732061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28498 + ... + 29488.

It is an arithmetic number, because the mean of its divisors is an integer number (3650560).

Almost surely, 228732063 is an apocalyptic number.

28732063 is a deficient number, since it is larger than the sum of its proper divisors (472417).

28732063 is an equidigital number, since it uses as much as digits as its factorization.

28732063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 28732063 is about 5360.2297525386. The cubic root of 28732063 is about 306.2825611360.

The spelling of 28732063 in words is "twenty-eight million, seven hundred thirty-two thousand, sixty-three".

Divisors: 1 79 367 991 28993 78289 363697 28732063