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69414489 = 34856969
BaseRepresentation
bin1000010001100…
…10111001011001
311211121121210000
410020302321121
5120232230424
610515443213
71502004414
oct410627131
9154547700
1069414489
1136201151
121b2b6509
13114c5181
14930cb7b
1561623c9
hex4232e59

69414489 has 10 divisors (see below), whose sum is σ = 103693370. Its totient is φ = 46276272.

The previous prime is 69414469. The next prime is 69414491. The reversal of 69414489 is 98441496.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 28005264 = 6435^2 + 5292^2 .

It is not a de Polignac number, because 69414489 - 215 = 69381721 is a prime.

It is a super-2 number, since 2×694144892 = 9636742566262242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69414409) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 428404 + ... + 428565.

It is an arithmetic number, because the mean of its divisors is an integer number (10369337).

Almost surely, 269414489 is an apocalyptic number.

It is an amenable number.

69414489 is a deficient number, since it is larger than the sum of its proper divisors (34278881).

69414489 is an equidigital number, since it uses as much as digits as its factorization.

69414489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856981 (or 856972 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 69414489 is about 8331.5358128019. The cubic root of 69414489 is about 410.9762360388.

The spelling of 69414489 in words is "sixty-nine million, four hundred fourteen thousand, four hundred eighty-nine".

Divisors: 1 3 9 27 81 856969 2570907 7712721 23138163 69414489