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825249297 = 3614509559
BaseRepresentation
bin110001001100000…
…100111000010001
32010111212000012210
4301030010320101
53142230434142
6213515542333
726310334425
oct6114047021
92114760183
10825249297
11393917014
121b045a9a9
13101c836c2
147b85cb85
154c6b349c
hex31304e11

825249297 has 8 divisors (see below), whose sum is σ = 1118370880. Its totient is φ = 541146960.

The previous prime is 825249289. The next prime is 825249301. The reversal of 825249297 is 792942528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 825249297 - 23 = 825249289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825248297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254597 + ... + 2254962.

It is an arithmetic number, because the mean of its divisors is an integer number (139796360).

Almost surely, 2825249297 is an apocalyptic number.

It is an amenable number.

825249297 is a deficient number, since it is larger than the sum of its proper divisors (293121583).

825249297 is a wasteful number, since it uses less digits than its factorization.

825249297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509623.

The product of its digits is 725760, while the sum is 48.

The square root of 825249297 is about 28727.1526086384. The cubic root of 825249297 is about 937.9831880063.

The spelling of 825249297 in words is "eight hundred twenty-five million, two hundred forty-nine thousand, two hundred ninety-seven".

Divisors: 1 3 61 183 4509559 13528677 275083099 825249297