Search a number
-
+
913305105 = 33531218233
BaseRepresentation
bin110110011011111…
…110111000010001
32100122112201002000
4312123332320101
53332301230410
6230343144213
731426652046
oct6633767021
92318481060
10913305105
1142959a709
12215a45069
131172a472b
14894211cd
15552a8dc0
hex366fee11

913305105 has 32 divisors (see below), whose sum is σ = 1676037120. Its totient is φ = 471381120.

The previous prime is 913305103. The next prime is 913305181. The reversal of 913305105 is 501503319.

It is not a de Polignac number, because 913305105 - 21 = 913305103 is a prime.

It is a super-2 number, since 2×9133051052 = 1668252429638122050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (913305103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104932 + ... + 113301.

It is an arithmetic number, because the mean of its divisors is an integer number (52376160).

Almost surely, 2913305105 is an apocalyptic number.

It is an amenable number.

913305105 is a deficient number, since it is larger than the sum of its proper divisors (762732015).

913305105 is a wasteful number, since it uses less digits than its factorization.

913305105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218278 (or 218272 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 913305105 is about 30220.9381886135. The cubic root of 913305105 is about 970.2238846236.

The spelling of 913305105 in words is "nine hundred thirteen million, three hundred five thousand, one hundred five".

Divisors: 1 3 5 9 15 27 31 45 93 135 155 279 465 837 1395 4185 218233 654699 1091165 1964097 3273495 5892291 6765223 9820485 20295669 29461455 33826115 60887007 101478345 182661021 304435035 913305105