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13220103018 = 235341572651
BaseRepresentation
bin11000100111111101…
…01100001101101010
31021010022221211001010
430103332230031222
5204033321244033
610023452404350
7645415010253
oct142376541552
937108854033
1013220103018
115674449081
12268b4766b6
131328b77285
148d5aa1b2a
1552592c863
hex313fac36a

13220103018 has 16 divisors (see below), whose sum is σ = 26939078496. Its totient is φ = 4323555600.

The previous prime is 13220102981. The next prime is 13220103019. The reversal of 13220103018 is 81030102231.

It is a super-2 number, since 2×132201030182 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13220102985 and 13220103003.

It is not an unprimeable number, because it can be changed into a prime (13220103019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20786008 + ... + 20786643.

It is an arithmetic number, because the mean of its divisors is an integer number (1683692406).

Almost surely, 213220103018 is an apocalyptic number.

13220103018 is an abundant number, since it is smaller than the sum of its proper divisors (13718975478).

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

13220103018 is a wasteful number, since it uses less digits than its factorization.

13220103018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41572709.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13220103018 its reverse (81030102231), we get a palindrome (94250205249).

The spelling of 13220103018 in words is "thirteen billion, two hundred twenty million, one hundred three thousand, eighteen".

Divisors: 1 2 3 6 53 106 159 318 41572651 83145302 124717953 249435906 2203350503 4406701006 6610051509 13220103018