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13020033311 = 401112928759
BaseRepresentation
bin11000010000000110…
…11111000100011111
31020121101111012222222
430020003133010133
5203131112031221
65551544255555
7640435312535
oct141003370437
936541435888
1013020033311
11558151880a
1226344715bb
1312c659732c
148b72a2155
155130ac9ab
hex3080df11f

13020033311 has 8 divisors (see below), whose sum is σ = 13064517600. Its totient is φ = 12975609600.

The previous prime is 13020033289. The next prime is 13020033331. The reversal of 13020033311 is 11333002031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13020033311 - 210 = 13020032287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13020033311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020033331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438350 + ... + 467108.

It is an arithmetic number, because the mean of its divisors is an integer number (1633064700).

Almost surely, 213020033311 is an apocalyptic number.

13020033311 is a deficient number, since it is larger than the sum of its proper divisors (44484289).

13020033311 is a wasteful number, since it uses less digits than its factorization.

13020033311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30289.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13020033311 its reverse (11333002031), we get a palindrome (24353035342).

The spelling of 13020033311 in words is "thirteen billion, twenty million, thirty-three thousand, three hundred eleven".

Divisors: 1 401 1129 28759 452729 11532359 32468911 13020033311