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40230344 = 2371165309
BaseRepresentation
bin1001100101110…
…1110111001000
32210200220122202
42121131313020
540244332334
63554135332
7665644430
oct231356710
983626582
1040230344
1120788720
1211581548
13844764b
1454b32c0
1537ea17e
hex265ddc8

40230344 has 32 divisors (see below), whose sum is σ = 94046400. Its totient is φ = 15673920.

The previous prime is 40230341. The next prime is 40230367. The reversal of 40230344 is 44303204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40230341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32039 + ... + 33270.

It is an arithmetic number, because the mean of its divisors is an integer number (2938950).

Almost surely, 240230344 is an apocalyptic number.

40230344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40230344 is an abundant number, since it is smaller than the sum of its proper divisors (53816056).

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

40230344 is a wasteful number, since it uses less digits than its factorization.

40230344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65333 (or 65329 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40230344 is about 6342.7394712380. The cubic root of 40230344 is about 342.6504043988.

Adding to 40230344 its reverse (44303204), we get a palindrome (84533548).

The spelling of 40230344 in words is "forty million, two hundred thirty thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 65309 130618 261236 457163 522472 718399 914326 1436798 1828652 2873596 3657304 5028793 5747192 10057586 20115172 40230344