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13103011240 = 2351141726331
BaseRepresentation
bin11000011010000000…
…00001010110101000
31020211011121221022121
430031000001112220
5203313332324430
610004111001024
7642463520644
oct141500012650
936734557277
1013103011240
115614343310
122658209174
13130a82acb7
148c4301c24
1551a4eda7a
hex30d0015a8

13103011240 has 64 divisors (see below), whose sum is σ = 32946419520. Its totient is φ = 4648512000.

The previous prime is 13103011147. The next prime is 13103011247. The reversal of 13103011240 is 4211030131.

It is not an unprimeable number, because it can be changed into a prime (13103011247) by changing a digit.

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, 345126 + ... + 381205.

It is an arithmetic number, because the mean of its divisors is an integer number (514787805).

Almost surely, 213103011240 is an apocalyptic number.

13103011240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103011240 is an abundant number, since it is smaller than the sum of its proper divisors (19843408280).

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

13103011240 is a wasteful number, since it uses less digits than its factorization.

13103011240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726394 (or 726390 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13103011240 its reverse (4211030131), we get a palindrome (17314041371).

The spelling of 13103011240 in words is "thirteen billion, one hundred three million, eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 41 44 55 82 88 110 164 205 220 328 410 440 451 820 902 1640 1804 2255 3608 4510 9020 18040 726331 1452662 2905324 3631655 5810648 7263310 7989641 14526620 15979282 29053240 29779571 31958564 39948205 59559142 63917128 79896410 119118284 148897855 159792820 238236568 297795710 319585640 327575281 595591420 655150562 1191182840 1310301124 1637876405 2620602248 3275752810 6551505620 13103011240