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69965397 = 331312151
BaseRepresentation
bin1000010101110…
…01011001010101
311212122121111000
410022321121111
5120402343042
610535333513
71506460515
oct412713125
9155577430
1069965397
1136548047
121b521299
1311658b58
149413845
15622074c
hex42b9655

69965397 has 24 divisors (see below), whose sum is σ = 105141440. Its totient is φ = 45981000.

The previous prime is 69965383. The next prime is 69965407. The reversal of 69965397 is 79356996.

It is not a de Polignac number, because 69965397 - 24 = 69965381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69965377) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 463272 + ... + 463422.

Almost surely, 269965397 is an apocalyptic number.

It is an amenable number.

69965397 is a deficient number, since it is larger than the sum of its proper divisors (35176043).

69965397 is a wasteful number, since it uses less digits than its factorization.

69965397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 285 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 69965397 is about 8364.5320849406. The cubic root of 69965397 is about 412.0606098188.

The spelling of 69965397 in words is "sixty-nine million, nine hundred sixty-five thousand, three hundred ninety-seven".

Divisors: 1 3 9 27 131 151 393 453 1179 1359 3537 4077 17161 19781 51483 59343 154449 178029 463347 534087 2591311 7773933 23321799 69965397