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260028725 = 52111078837
BaseRepresentation
bin11110111111110…
…11100100110101
3200010021211100112
433133323210311
51013031404400
641445152405
76305131145
oct1737734465
9603254315
10260028725
11123863480
12730bb705
1341b44368
142676a925
1517c65835
hexf7fb935

260028725 has 24 divisors (see below), whose sum is σ = 355075488. Its totient is φ = 187323200.

The previous prime is 260028679. The next prime is 260028751. The reversal of 260028725 is 527820062.

It is not a de Polignac number, because 260028725 - 28 = 260028469 is a prime.

It is a super-2 number, since 2×2600287252 = 135229875650251250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 260028691 and 260028700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25007 + ... + 33843.

It is an arithmetic number, because the mean of its divisors is an integer number (14794812).

Almost surely, 2260028725 is an apocalyptic number.

260028725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

260028725 is a deficient number, since it is larger than the sum of its proper divisors (95046763).

260028725 is a wasteful number, since it uses less digits than its factorization.

260028725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965 (or 8960 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 260028725 is about 16125.4061964342. The cubic root of 260028725 is about 638.2739338199.

Adding to 260028725 its reverse (527820062), we get a palindrome (787848787).

The spelling of 260028725 in words is "two hundred sixty million, twenty-eight thousand, seven hundred twenty-five".

Divisors: 1 5 11 25 55 107 275 535 1177 2675 5885 8837 29425 44185 97207 220925 486035 945559 2430175 4727795 10401149 23638975 52005745 260028725