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28759713 = 379121349
BaseRepresentation
bin110110110110…
…1011010100001
32000010010220120
41231231122201
524330302323
62504230453
7466311363
oct155553241
960103816
1028759713
1115263664
12976b429
135c5c5a8
143b68d33
1527d15e3
hex1b6d6a1

28759713 has 8 divisors (see below), whose sum is σ = 38832000. Its totient is φ = 18930288.

The previous prime is 28759681. The next prime is 28759769. The reversal of 28759713 is 31795782.

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

It is not a de Polignac number, because 28759713 - 25 = 28759681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28759813) 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, 60438 + ... + 60911.

It is an arithmetic number, because the mean of its divisors is an integer number (4854000).

Almost surely, 228759713 is an apocalyptic number.

It is an amenable number.

28759713 is a deficient number, since it is larger than the sum of its proper divisors (10072287).

28759713 is a wasteful number, since it uses less digits than its factorization.

28759713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121431.

The product of its digits is 105840, while the sum is 42.

The square root of 28759713 is about 5362.8083128152. The cubic root of 28759713 is about 306.3807789084.

The spelling of 28759713 in words is "twenty-eight million, seven hundred fifty-nine thousand, seven hundred thirteen".

Divisors: 1 3 79 237 121349 364047 9586571 28759713