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40514440 = 2351012861
BaseRepresentation
bin1001101010001…
…1001110001000
32211020100100211
42122203032020
540332430230
64004210504
71001236621
oct232431610
984210324
1040514440
112096210a
1211699a34
138516a55
145548a48
15385442a
hex26a3388

40514440 has 16 divisors (see below), whose sum is σ = 91157580. Its totient is φ = 16205760.

The previous prime is 40514413. The next prime is 40514459. The reversal of 40514440 is 4441504.

It can be written as a sum of positive squares in 2 ways, for example, as 39715204 + 799236 = 6302^2 + 894^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 506391 + ... + 506470.

Almost surely, 240514440 is an apocalyptic number.

40514440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40514440 is an abundant number, since it is smaller than the sum of its proper divisors (50643140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40514440 is a wasteful number, since it uses less digits than its factorization.

40514440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012872 (or 1012868 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 40514440 is about 6365.0954431179. The cubic root of 40514440 is about 343.4550819254.

Adding to 40514440 its reverse (4441504), we get a palindrome (44955944).

The spelling of 40514440 in words is "forty million, five hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1012861 2025722 4051444 5064305 8102888 10128610 20257220 40514440