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69974225 = 522798969
BaseRepresentation
bin1000010101110…
…11100011010001
311212200001120222
410022323203101
5120403133400
610535442425
71506525326
oct412734321
9155601528
1069974225
1136553742
121b526415
131165cb89
149416b4d
156223185
hex42bb8d1

69974225 has 6 divisors (see below), whose sum is σ = 86768070. Its totient is φ = 55979360.

The previous prime is 69974213. The next prime is 69974231. The reversal of 69974225 is 52247996.

It can be written as a sum of positive squares in 3 ways, for example, as 3323329 + 66650896 = 1823^2 + 8164^2 .

It is not a de Polignac number, because 69974225 - 214 = 69957841 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 1399460 + ... + 1399509.

It is an arithmetic number, because the mean of its divisors is an integer number (14461345).

Almost surely, 269974225 is an apocalyptic number.

It is an amenable number.

69974225 is a deficient number, since it is larger than the sum of its proper divisors (16793845).

69974225 is a wasteful number, since it uses less digits than its factorization.

69974225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798979 (or 2798974 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 69974225 is about 8365.0597726496. The cubic root of 69974225 is about 412.0779399003.

Adding to 69974225 its reverse (52247996), we get a palindrome (122222221).

The spelling of 69974225 in words is "sixty-nine million, nine hundred seventy-four thousand, two hundred twenty-five".

Divisors: 1 5 25 2798969 13994845 69974225