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69827225 = 5213214853
BaseRepresentation
bin1000010100101…
…11101010011001
311212101120221112
410022113222121
5120333432400
610532350105
71505343626
oct412275231
9155346845
1069827225
1136463256
121b475335
131160acb0
1493b934d
1561e4835
hex4297a99

69827225 has 12 divisors (see below), whose sum is σ = 93246636. Its totient is φ = 51564480.

The previous prime is 69827213. The next prime is 69827257. The reversal of 69827225 is 52272896.

It can be written as a sum of positive squares in 6 ways, for example, as 4489 + 69822736 = 67^2 + 8356^2 .

It is not a de Polignac number, because 69827225 - 26 = 69827161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 107102 + ... + 107751.

It is an arithmetic number, because the mean of its divisors is an integer number (7770553).

Almost surely, 269827225 is an apocalyptic number.

69827225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69827225 is a deficient number, since it is larger than the sum of its proper divisors (23419411).

69827225 is a wasteful number, since it uses less digits than its factorization.

69827225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214876 (or 214871 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 69827225 is about 8356.2686050653. The cubic root of 69827225 is about 411.7891767870.

The spelling of 69827225 in words is "sixty-nine million, eight hundred twenty-seven thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 214853 1074265 2793089 5371325 13965445 69827225