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13345387 = 115920563
BaseRepresentation
bin110010111010…
…001001101011
3221010000102121
4302322021223
511404023022
61154012111
7221301556
oct62721153
927100377
1013345387
117595650
124577037
1329c34a3
141ab569d
1512892c7
hexcba26b

13345387 has 8 divisors (see below), whose sum is σ = 14806080. Its totient is φ = 11925960.

The previous prime is 13345379. The next prime is 13345399. The reversal of 13345387 is 78354331.

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 13345387 - 23 = 13345379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13345337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9633 + ... + 10930.

It is an arithmetic number, because the mean of its divisors is an integer number (1850760).

Almost surely, 213345387 is an apocalyptic number.

13345387 is a deficient number, since it is larger than the sum of its proper divisors (1460693).

13345387 is a wasteful number, since it uses less digits than its factorization.

13345387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20633.

The product of its digits is 30240, while the sum is 34.

The square root of 13345387 is about 3653.1338601261. The cubic root of 13345387 is about 237.1976547879.

The spelling of 13345387 in words is "thirteen million, three hundred forty-five thousand, three hundred eighty-seven".

Divisors: 1 11 59 649 20563 226193 1213217 13345387