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13123797 = 343310103
BaseRepresentation
bin110010000100…
…000011010101
3220200202110120
4302010003111
511324430142
61145142153
7216356541
oct62040325
926622416
1013123797
117454115
12448a959
13294667b
141a58a21
1512437ec
hexc840d5

13123797 has 8 divisors (see below), whose sum is σ = 17540544. Its totient is φ = 8728128.

The previous prime is 13123769. The next prime is 13123811. The reversal of 13123797 is 79732131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13123797 - 220 = 12075221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3753 + ... + 6350.

It is an arithmetic number, because the mean of its divisors is an integer number (2192568).

Almost surely, 213123797 is an apocalyptic number.

It is an amenable number.

13123797 is a deficient number, since it is larger than the sum of its proper divisors (4416747).

13123797 is a wasteful number, since it uses less digits than its factorization.

13123797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10539.

The product of its digits is 7938, while the sum is 33.

The square root of 13123797 is about 3622.6781529692. The cubic root of 13123797 is about 235.8774919564.

The spelling of 13123797 in words is "thirteen million, one hundred twenty-three thousand, seven hundred ninety-seven".

Divisors: 1 3 433 1299 10103 30309 4374599 13123797