Search a number
-
+
16386041 = 721731933
BaseRepresentation
bin111110100000…
…011111111001
31010211111102102
4332200133321
513143323131
61343113145
7256164500
oct76403771
933744372
1016386041
119282091
1255a27b5
1335194a9
142267837
15168a1cb
hexfa07f9

16386041 has 12 divisors (see below), whose sum is σ = 19181412. Its totient is φ = 13956768.

The previous prime is 16386031. The next prime is 16386043. The reversal of 16386041 is 14068361.

It can be written as a sum of positive squares in 2 ways, for example, as 13249600 + 3136441 = 3640^2 + 1771^2 .

It is a de Polignac number, because none of the positive numbers 2k-16386041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16385995 and 16386013.

It is not an unprimeable number, because it can be changed into a prime (16386043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7511 + ... + 9443.

It is an arithmetic number, because the mean of its divisors is an integer number (1598451).

Almost surely, 216386041 is an apocalyptic number.

It is an amenable number.

16386041 is a deficient number, since it is larger than the sum of its proper divisors (2795371).

16386041 is a wasteful number, since it uses less digits than its factorization.

16386041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2113 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 16386041 is about 4047.9675146918. The cubic root of 16386041 is about 253.9947143794.

The spelling of 16386041 in words is "sixteen million, three hundred eighty-six thousand, forty-one".

Divisors: 1 7 49 173 1211 1933 8477 13531 94717 334409 2340863 16386041