Search a number
-
+
445712241 = 31319837247
BaseRepresentation
bin11010100100010…
…000011101110001
31011001200112020210
4122210100131301
51403100242431
6112121054333
714021330412
oct3244203561
91131615223
10445712241
11209658227
121053273a9
1371458170
14432a3809
15291e2d46
hex1a910771

445712241 has 32 divisors (see below), whose sum is σ = 681891840. Its totient is φ = 256682304.

The previous prime is 445712237. The next prime is 445712251. The reversal of 445712241 is 142217544.

It is not a de Polignac number, because 445712241 - 22 = 445712237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445712199 and 445712208.

It is not an unprimeable number, because it can be changed into a prime (445712221) 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 31 ways as a sum of consecutive naturals, for example, 57880 + ... + 65126.

It is an arithmetic number, because the mean of its divisors is an integer number (21309120).

Almost surely, 2445712241 is an apocalyptic number.

It is an amenable number.

445712241 is a deficient number, since it is larger than the sum of its proper divisors (236179599).

445712241 is a wasteful number, since it uses less digits than its factorization.

445712241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365.

The product of its digits is 8960, while the sum is 30.

The square root of 445712241 is about 21111.8980908870. The cubic root of 445712241 is about 763.8677718815.

Adding to 445712241 its reverse (142217544), we get a palindrome (587929785).

The spelling of 445712241 in words is "four hundred forty-five million, seven hundred twelve thousand, two hundred forty-one".

Divisors: 1 3 13 19 39 57 83 247 249 741 1079 1577 3237 4731 7247 20501 21741 61503 94211 137693 282633 413079 601501 1790009 1804503 5370027 7819513 11428519 23458539 34285557 148570747 445712241