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2438505 = 375223
BaseRepresentation
bin1001010011010101101001
311120220000000
421103111221
51111013010
6124133213
726504226
oct11232551
94526000
102438505
1114160a3
12997209
13674c04
1447694d
153327c0
hex253569

2438505 has 32 divisors (see below), whose sum is σ = 4408320. Its totient is φ = 1294704.

The previous prime is 2438503. The next prime is 2438507. The reversal of 2438505 is 5058342.

2438505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2438503) and next prime (2438507).

It is not a de Polignac number, because 2438505 - 21 = 2438503 is a prime.

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 (2438503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10824 + ... + 11046.

It is an arithmetic number, because the mean of its divisors is an integer number (137760).

22438505 is an apocalyptic number.

It is an amenable number.

2438505 is a deficient number, since it is larger than the sum of its proper divisors (1969815).

2438505 is an frugal number, since it uses more digits than its factorization.

2438505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2438505 is about 1561.5713240195. The cubic root of 2438505 is about 134.5988089271.

It can be divided in two parts, 24 and 38505, that multiplied together give a triangular number (924120 = T1359).

The spelling of 2438505 in words is "two million, four hundred thirty-eight thousand, five hundred five".

Divisors: 1 3 5 9 15 27 45 81 135 223 243 405 669 729 1115 1215 2007 2187 3345 3645 6021 10035 10935 18063 30105 54189 90315 162567 270945 487701 812835 2438505