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13069811850 = 235287132079
BaseRepresentation
bin11000010110000010…
…11000000010001010
31020201212011020022120
430023001120002022
5203231332434400
610000523232110
7641611365504
oct141301300212
936655136276
1013069811850
1155a76280a7
122649078636
1313039a59a4
148bdb3cd74
15517641ca0
hex30b05808a

13069811850 has 24 divisors (see below), whose sum is σ = 32413133760. Its totient is φ = 3485283120.

The previous prime is 13069811791. The next prime is 13069811851. The reversal of 13069811850 is 5811896031.

It is not an unprimeable number, because it can be changed into a prime (13069811851) 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 11 ways as a sum of consecutive naturals, for example, 43565890 + ... + 43566189.

It is an arithmetic number, because the mean of its divisors is an integer number (1350547240).

Almost surely, 213069811850 is an apocalyptic number.

13069811850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13069811850 is an abundant number, since it is smaller than the sum of its proper divisors (19343321910).

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

13069811850 is a wasteful number, since it uses less digits than its factorization.

13069811850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87132094 (or 87132089 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 13069811850 in words is "thirteen billion, sixty-nine million, eight hundred eleven thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 87132079 174264158 261396237 435660395 522792474 871320790 1306981185 2178301975 2613962370 4356603950 6534905925 13069811850