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28052135 = 529193463
BaseRepresentation
bin110101100000…
…0101010100111
31221210012021222
41223000222213
524140132020
62441130555
7460303436
oct153005247
957705258
1028052135
111491aa91
129489a5b
135a724c7
143a2311d
1526e1b25
hex1ac0aa7

28052135 has 8 divisors (see below), whose sum is σ = 34823520. Its totient is φ = 21667744.

The previous prime is 28052119. The next prime is 28052197. The reversal of 28052135 is 53125082.

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 28052135 - 24 = 28052119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96587 + ... + 96876.

It is an arithmetic number, because the mean of its divisors is an integer number (4352940).

Almost surely, 228052135 is an apocalyptic number.

28052135 is a deficient number, since it is larger than the sum of its proper divisors (6771385).

28052135 is a wasteful number, since it uses less digits than its factorization.

28052135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193497.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 28052135 is about 5296.4266255656. The cubic root of 28052135 is about 303.8472476758.

The spelling of 28052135 in words is "twenty-eight million, fifty-two thousand, one hundred thirty-five".

Divisors: 1 5 29 145 193463 967315 5610427 28052135