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263028825 = 32521169017
BaseRepresentation
bin11111010110110…
…00000001011001
3200022221020201100
433223120001121
51014313410300
642033342013
76342464613
oct1753300131
9608836640
10263028825
111255224a4
1274107909
1342654a77
1426d0bdb3
1518159700
hexfad8059

263028825 has 18 divisors (see below), whose sum is σ = 471114254. Its totient is φ = 140281920.

The previous prime is 263028809. The next prime is 263028827. The reversal of 263028825 is 528820362.

263028825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4076361 + 258952464 = 2019^2 + 16092^2 .

It is not a de Polignac number, because 263028825 - 24 = 263028809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 263028825.

It is not an unprimeable number, because it can be changed into a prime (263028827) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 584284 + ... + 584733.

Almost surely, 2263028825 is an apocalyptic number.

263028825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263028825 is a deficient number, since it is larger than the sum of its proper divisors (208085429).

263028825 is a wasteful number, since it uses less digits than its factorization.

263028825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169033 (or 1169025 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 263028825 is about 16218.1634286993. The cubic root of 263028825 is about 640.7192637812.

The spelling of 263028825 in words is "two hundred sixty-three million, twenty-eight thousand, eight hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 1169017 3507051 5845085 10521153 17535255 29225425 52605765 87676275 263028825