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9997369 = 25513919
BaseRepresentation
bin100110001000…
…110000111001
3200210220210221
4212020300321
510024403434
6554140041
7150655564
oct46106071
920726727
109997369
115709198
123421621
1320c0605
1414834db
15d272b4
hex988c39

9997369 has 4 divisors (see below), whose sum is σ = 10003840. Its totient is φ = 9990900.

The previous prime is 9997367. The next prime is 9997381. The reversal of 9997369 is 9637999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9997369 - 21 = 9997367 is a prime.

It is a super-2 number, since 2×99973692 = 199894773844322, which contains 22 as substring.

It is a Duffinian number.

9997369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9997367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592 + ... + 4510.

It is an arithmetic number, because the mean of its divisors is an integer number (2500960).

Almost surely, 29997369 is an apocalyptic number.

It is an amenable number.

9997369 is a deficient number, since it is larger than the sum of its proper divisors (6471).

9997369 is a wasteful number, since it uses less digits than its factorization.

9997369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470.

The product of its digits is 826686, while the sum is 52.

The square root of 9997369 is about 3161.8616351763. The cubic root of 9997369 is about 215.4245729537.

The spelling of 9997369 in words is "nine million, nine hundred ninety-seven thousand, three hundred sixty-nine".

Divisors: 1 2551 3919 9997369