Search a number
-
+
13070749 is a prime number
BaseRepresentation
bin110001110111…
…000110011101
3220121001200211
4301313012131
511321230444
61144052421
7216046066
oct61670635
926531624
1013070749
11741827a
124464111
132928493
141a4356d
151232c34
hexc7719d

13070749 has 2 divisors, whose sum is σ = 13070750. Its totient is φ = 13070748.

The previous prime is 13070741. The next prime is 13070767. The reversal of 13070749 is 94707031.

13070749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9765625 + 3305124 = 3125^2 + 1818^2 .

It is a cyclic number.

It is not a de Polignac number, because 13070749 - 23 = 13070741 is a prime.

It is equal to p853519 and since 13070749 and 853519 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13070749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13070741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535374 + 6535375.

It is an arithmetic number, because the mean of its divisors is an integer number (6535375).

Almost surely, 213070749 is an apocalyptic number.

It is an amenable number.

13070749 is a deficient number, since it is larger than the sum of its proper divisors (1).

13070749 is an equidigital number, since it uses as much as digits as its factorization.

13070749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 13070749 is about 3615.3490841135. The cubic root of 13070749 is about 235.5592475078.

The spelling of 13070749 in words is "thirteen million, seventy thousand, seven hundred forty-nine".