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13313719 = 101193683
BaseRepresentation
bin110010110010…
…011010110111
3221001101222201
4302302122313
511402014334
61153205331
7221110336
oct62623267
927041881
1013313719
117573881
124560847
1329b1c53
141aa7d1d
15127ec14
hexcb26b7

13313719 has 8 divisors (see below), whose sum is σ = 13534992. Its totient is φ = 13094400.

The previous prime is 13313717. The next prime is 13313731. The reversal of 13313719 is 91731331.

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 13313719 - 21 = 13313717 is a prime.

It is a super-2 number, since 2×133137192 = 354510227221922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313717) 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, 19152 + ... + 19834.

It is an arithmetic number, because the mean of its divisors is an integer number (1691874).

Almost surely, 213313719 is an apocalyptic number.

13313719 is a deficient number, since it is larger than the sum of its proper divisors (221273).

13313719 is a wasteful number, since it uses less digits than its factorization.

13313719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

The product of its digits is 1701, while the sum is 28.

The square root of 13313719 is about 3648.7969250151. The cubic root of 13313719 is about 237.0098864172.

It can be divided in two parts, 1331 and 3719, that added together give a triangular number (5050 = T100).

The spelling of 13313719 in words is "thirteen million, three hundred thirteen thousand, seven hundred nineteen".

Divisors: 1 101 193 683 19493 68983 131819 13313719