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40353205 = 57121601
BaseRepresentation
bin1001100111101…
…1110110110101
32210221011012011
42121323312311
540312300310
64000524221
7666665554
oct231736665
983834164
1040353205
1120861a62
1211620671
13848b549
145505d9b
15382178a
hex267bdb5

40353205 has 12 divisors (see below), whose sum is σ = 49146156. Its totient is φ = 31808000.

The previous prime is 40353197. The next prime is 40353211. The reversal of 40353205 is 50235304.

It can be written as a sum of positive squares in 2 ways, for example, as 31460881 + 8892324 = 5609^2 + 2982^2 .

It is not a de Polignac number, because 40353205 - 23 = 40353197 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24405 + ... + 26005.

It is an arithmetic number, because the mean of its divisors is an integer number (4095513).

Almost surely, 240353205 is an apocalyptic number.

It is an amenable number.

40353205 is a deficient number, since it is larger than the sum of its proper divisors (8792951).

40353205 is an equidigital number, since it uses as much as digits as its factorization.

40353205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 40353205 is about 6352.4172564466. The cubic root of 40353205 is about 342.9988610150.

Adding to 40353205 its reverse (50235304), we get a palindrome (90588509).

The spelling of 40353205 in words is "forty million, three hundred fifty-three thousand, two hundred five".

Divisors: 1 5 71 355 1601 5041 8005 25205 113671 568355 8070641 40353205