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14452540 = 2251973521
BaseRepresentation
bin110111001000…
…011100111100
31000012021011021
4313020130330
512144440130
61233433524
7233562454
oct67103474
930167137
1014452540
118181453
124a0b8a4
132cc03cb
141cc2d64
15140737a
hexdc873c

14452540 has 48 divisors (see below), whose sum is σ = 32447520. Its totient is φ = 5391360.

The previous prime is 14452523. The next prime is 14452549. The reversal of 14452540 is 4525441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14452549) 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 15 ways as a sum of consecutive naturals, for example, 27480 + ... + 28000.

It is an arithmetic number, because the mean of its divisors is an integer number (675990).

Almost surely, 214452540 is an apocalyptic number.

14452540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14452540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16223760).

14452540 is an abundant number, since it is smaller than the sum of its proper divisors (17994980).

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

14452540 is a wasteful number, since it uses less digits than its factorization.

14452540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 14452540 is about 3801.6496419318. The cubic root of 14452540 is about 243.5836085544.

Adding to 14452540 its reverse (4525441), we get a palindrome (18977981).

The spelling of 14452540 in words is "fourteen million, four hundred fifty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 19 20 38 73 76 95 146 190 292 365 380 521 730 1042 1387 1460 2084 2605 2774 5210 5548 6935 9899 10420 13870 19798 27740 38033 39596 49495 76066 98990 152132 190165 197980 380330 722627 760660 1445254 2890508 3613135 7226270 14452540