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13219713 = 331337663
BaseRepresentation
bin110010011011…
…011110000001
3220212122001000
4302123132001
511341012323
61151202213
7220236303
oct62333601
926778030
1013219713
11750a191
124516369
13297b220
141a81973
151261e43
hexc9b781

13219713 has 16 divisors (see below), whose sum is σ = 21091840. Its totient is φ = 8134992.

The previous prime is 13219699. The next prime is 13219729. The reversal of 13219713 is 31791231.

13219713 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13219713 - 212 = 13215617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13219813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18481 + ... + 19182.

It is an arithmetic number, because the mean of its divisors is an integer number (1318240).

Almost surely, 213219713 is an apocalyptic number.

13219713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13219713 is a deficient number, since it is larger than the sum of its proper divisors (7872127).

13219713 is a wasteful number, since it uses less digits than its factorization.

13219713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37685 (or 37679 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 13219713 is about 3635.8923251384. The cubic root of 13219713 is about 236.4507389351.

The spelling of 13219713 in words is "thirteen million, two hundred nineteen thousand, seven hundred thirteen".

Divisors: 1 3 9 13 27 39 117 351 37663 112989 338967 489619 1016901 1468857 4406571 13219713