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13044305540 = 2257101922511
BaseRepresentation
bin11000010011000000…
…00100111010000100
31020200002011101020102
430021200010322010
5203203320234130
65554212423232
7641151524210
oct141140047204
936602141212
1013044305540
115594196902
122640617b18
1312cb6151b6
148ba5bd940
155152a4645
hex309804e84

13044305540 has 48 divisors (see below), whose sum is σ = 31616331264. Its totient is φ = 4428048000.

The previous prime is 13044305507. The next prime is 13044305551. The reversal of 13044305540 is 4550344031.

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 15 ways as a sum of consecutive naturals, for example, 447116 + ... + 475395.

It is an arithmetic number, because the mean of its divisors is an integer number (658673568).

Almost surely, 213044305540 is an apocalyptic number.

13044305540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044305540 is an abundant number, since it is smaller than the sum of its proper divisors (18572025724).

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

13044305540 is a wasteful number, since it uses less digits than its factorization.

13044305540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922628 (or 922626 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 13044305540 its reverse (4550344031), we get a palindrome (17594649571).

The spelling of 13044305540 in words is "thirteen billion, forty-four million, three hundred five thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 101 140 202 404 505 707 1010 1414 2020 2828 3535 7070 14140 922511 1845022 3690044 4612555 6457577 9225110 12915154 18450220 25830308 32287885 64575770 93173611 129151540 186347222 372694444 465868055 652215277 931736110 1304430554 1863472220 2608861108 3261076385 6522152770 13044305540