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69884564 = 2237472193
BaseRepresentation
bin1000010101001…
…01101010010100
311212111111121012
410022211222110
5120342301224
610533511352
71506003041
oct412455224
9155444535
1069884564
11364a2342
121b4a2558
131162b119
1493d21c8
15620680e
hex42a5a94

69884564 has 12 divisors (see below), whose sum is σ = 125603604. Its totient is φ = 33997824.

The previous prime is 69884543. The next prime is 69884567. The reversal of 69884564 is 46548896.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54612100 + 15272464 = 7390^2 + 3908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69884567) 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 3 ways as a sum of consecutive naturals, for example, 235949 + ... + 236244.

It is an arithmetic number, because the mean of its divisors is an integer number (10466967).

Almost surely, 269884564 is an apocalyptic number.

It is an amenable number.

69884564 is a deficient number, since it is larger than the sum of its proper divisors (55719040).

69884564 is a wasteful number, since it uses less digits than its factorization.

69884564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472234 (or 472232 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The square root of 69884564 is about 8359.6987984018. The cubic root of 69884564 is about 411.9018602455.

The spelling of 69884564 in words is "sixty-nine million, eight hundred eighty-four thousand, five hundred sixty-four".

Divisors: 1 2 4 37 74 148 472193 944386 1888772 17471141 34942282 69884564