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7072725 = 352118573
BaseRepresentation
bin11010111110101111010101
3111022022221210
4122332233111
53302311400
6411332033
7114055122
oct32765725
914268853
107072725
113aa0930
122451019
13160835a
14d21749
1594a950
hex6bebd5

7072725 has 24 divisors (see below), whose sum is σ = 12758112. Its totient is φ = 3428800.

The previous prime is 7072699. The next prime is 7072771. The reversal of 7072725 is 5272707.

It is not a de Polignac number, because 7072725 - 215 = 7039957 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7072692 and 7072701.

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, 3462 + ... + 5111.

It is an arithmetic number, because the mean of its divisors is an integer number (531588).

Almost surely, 27072725 is an apocalyptic number.

7072725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7072725 is a deficient number, since it is larger than the sum of its proper divisors (5685387).

7072725 is a wasteful number, since it uses less digits than its factorization.

7072725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8597 (or 8592 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 7072725 is about 2659.4595315590. The cubic root of 7072725 is about 191.9533035310.

The spelling of 7072725 in words is "seven million, seventy-two thousand, seven hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 165 275 825 8573 25719 42865 94303 128595 214325 282909 471515 642975 1414545 2357575 7072725