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13065965 = 511237563
BaseRepresentation
bin110001110101…
…111011101101
3220120211010122
4301311323231
511321102330
61144014325
7216026123
oct61657355
926524118
1013065965
117414720
1244613a5
132926253
141a41913
1512315e5
hexc75eed

13065965 has 8 divisors (see below), whose sum is σ = 17104608. Its totient is φ = 9502480.

The previous prime is 13065961. The next prime is 13065967. The reversal of 13065965 is 56956031.

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

It is not a de Polignac number, because 13065965 - 22 = 13065961 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 (13065961) 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, 118727 + ... + 118836.

It is an arithmetic number, because the mean of its divisors is an integer number (2138076).

Almost surely, 213065965 is an apocalyptic number.

It is an amenable number.

13065965 is a deficient number, since it is larger than the sum of its proper divisors (4038643).

13065965 is a wasteful number, since it uses less digits than its factorization.

13065965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237579.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 13065965 is about 3614.6874000389. The cubic root of 13065965 is about 235.5305051367.

The spelling of 13065965 in words is "thirteen million, sixty-five thousand, nine hundred sixty-five".

Divisors: 1 5 11 55 237563 1187815 2613193 13065965