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825300749 = 7139069239
BaseRepresentation
bin110001001100010…
…001011100001101
32010111221121210102
4301030101130031
53142234110444
6213521020445
726310640430
oct6114213415
92114847712
10825300749
11393951739
121b0484725
13101ca0c50
147b873817
154c6c384e
hex3131170d

825300749 has 8 divisors (see below), whose sum is σ = 1015754880. Its totient is φ = 652985136.

The previous prime is 825300733. The next prime is 825300761. The reversal of 825300749 is 947003528.

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 825300749 - 24 = 825300733 is a prime.

It is a super-2 number, since 2×8253007492 = 1362242652599922002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825300769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4534529 + ... + 4534710.

It is an arithmetic number, because the mean of its divisors is an integer number (126969360).

Almost surely, 2825300749 is an apocalyptic number.

It is an amenable number.

825300749 is a deficient number, since it is larger than the sum of its proper divisors (190454131).

825300749 is a wasteful number, since it uses less digits than its factorization.

825300749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069259.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 825300749 is about 28728.0481237414. The cubic root of 825300749 is about 938.0026811495.

The spelling of 825300749 in words is "eight hundred twenty-five million, three hundred thousand, seven hundred forty-nine".

Divisors: 1 7 13 91 9069239 63484673 117900107 825300749