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13033032020 = 225699793133
BaseRepresentation
bin11000010001101010…
…00100100101010100
31020122021221121212122
430020311010211110
5203142424011040
65553131035112
7640653641621
oct141065044524
936567847778
1013033032020
115588896948
12263889ba98
1312c9198a88
148b8cc7348
155142c91b5
hex308d44954

13033032020 has 24 divisors (see below), whose sum is σ = 27373572744. Its totient is φ = 5212411776.

The previous prime is 13033032017. The next prime is 13033032037. The reversal of 13033032020 is 2023033031.

It can be written as a sum of positive squares in 4 ways, for example, as 44782864 + 12988249156 = 6692^2 + 113966^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13033032020.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 93374 + ... + 186506.

It is an arithmetic number, because the mean of its divisors is an integer number (1140565531).

Almost surely, 213033032020 is an apocalyptic number.

13033032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13033032020 is an abundant number, since it is smaller than the sum of its proper divisors (14340540724).

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

13033032020 is a wasteful number, since it uses less digits than its factorization.

13033032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100139 (or 100137 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 13033032020 its reverse (2023033031), we get a palindrome (15056065051).

The spelling of 13033032020 in words is "thirteen billion, thirty-three million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 6997 13994 27988 34985 69970 93133 139940 186266 372532 465665 931330 1862660 651651601 1303303202 2606606404 3258258005 6516516010 13033032020