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13287629 = 231274549
BaseRepresentation
bin110010101100…
…000011001101
3221000002012102
4302230003031
511400201004
61152444445
7220641305
oct62540315
927002172
1013287629
117556213
124549725
1329a3104
141a9c605
15127711e
hexcac0cd

13287629 has 8 divisors (see below), whose sum is σ = 13977600. Its totient is φ = 12607056.

The previous prime is 13287619. The next prime is 13287643. The reversal of 13287629 is 92678231.

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

It is a cyclic number.

It is not a de Polignac number, because 13287629 - 216 = 13222093 is a prime.

It is a super-2 number, since 2×132876292 = 353122168883282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13287592 and 13287601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13287619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 5195.

It is an arithmetic number, because the mean of its divisors is an integer number (1747200).

Almost surely, 213287629 is an apocalyptic number.

It is an amenable number.

13287629 is a deficient number, since it is larger than the sum of its proper divisors (689971).

13287629 is a wasteful number, since it uses less digits than its factorization.

13287629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699.

The product of its digits is 36288, while the sum is 38.

The square root of 13287629 is about 3645.2200207944. The cubic root of 13287629 is about 236.8549677320.

The spelling of 13287629 in words is "thirteen million, two hundred eighty-seven thousand, six hundred twenty-nine".

Divisors: 1 23 127 2921 4549 104627 577723 13287629