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28625753 = 133759513
BaseRepresentation
bin110110100110…
…0101101011001
31222212100011002
41231030231121
524312011003
62501314345
7465213002
oct155145531
958770132
1028625753
1115181a52
1297059b5
135c13620
143b321a9
1527a6a88
hex1b4cb59

28625753 has 8 divisors (see below), whose sum is σ = 31661448. Its totient is φ = 25709184.

The previous prime is 28625713. The next prime is 28625759. The reversal of 28625753 is 35752682.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 28590409 = 188^2 + 5347^2 .

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 28625753 - 28 = 28625497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28625759) 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, 29276 + ... + 30237.

It is an arithmetic number, because the mean of its divisors is an integer number (3957681).

Almost surely, 228625753 is an apocalyptic number.

It is an amenable number.

28625753 is a deficient number, since it is larger than the sum of its proper divisors (3035695).

28625753 is a wasteful number, since it uses less digits than its factorization.

28625753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59563.

The product of its digits is 100800, while the sum is 38.

The square root of 28625753 is about 5350.3040100540. The cubic root of 28625753 is about 305.9043409250.

The spelling of 28625753 in words is "twenty-eight million, six hundred twenty-five thousand, seven hundred fifty-three".

Divisors: 1 13 37 481 59513 773669 2201981 28625753