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28827353 = 67430259
BaseRepresentation
bin110110111110…
…1111011011001
32000020120200202
41231331323121
524334433403
62505511545
7500012522
oct155757331
960216622
1028827353
11152aa465
1297a25b5
135c84309
143b85849
1527e6688
hex1b7ded9

28827353 has 4 divisors (see below), whose sum is σ = 29257680. Its totient is φ = 28397028.

The previous prime is 28827347. The next prime is 28827371. The reversal of 28827353 is 35372882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28827353 - 212 = 28823257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28827553) 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, 215063 + ... + 215196.

It is an arithmetic number, because the mean of its divisors is an integer number (7314420).

Almost surely, 228827353 is an apocalyptic number.

It is an amenable number.

28827353 is a deficient number, since it is larger than the sum of its proper divisors (430327).

28827353 is an equidigital number, since it uses as much as digits as its factorization.

28827353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430326.

The product of its digits is 80640, while the sum is 38.

The square root of 28827353 is about 5369.1110064889. Note that the first 3 decimals coincide. The cubic root of 28827353 is about 306.6207832792.

The spelling of 28827353 in words is "twenty-eight million, eight hundred twenty-seven thousand, three hundred fifty-three".

Divisors: 1 67 430259 28827353