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13220111230 = 2517922333119
BaseRepresentation
bin11000100111111101…
…01110001101111110
31021010022222020022021
430103332232031332
5204033322024410
610023452510354
7645415043224
oct142376561576
937108866267
1013220111230
115674454267
12268b47b3ba
131328b7ac31
148d5aa4b14
1552592eeda
hex313fae37e

13220111230 has 32 divisors (see below), whose sum is σ = 24037171200. Its totient is φ = 5234763552.

The previous prime is 13220111227. The next prime is 13220111237. The reversal of 13220111230 is 3211102231.

It is a super-2 number, since 2×132201112302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220111237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382611 + ... + 415729.

It is an arithmetic number, because the mean of its divisors is an integer number (751161600).

Almost surely, 213220111230 is an apocalyptic number.

13220111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13220111230 is a deficient number, since it is larger than the sum of its proper divisors (10817059970).

13220111230 is a wasteful number, since it uses less digits than its factorization.

13220111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33528.

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

Adding to 13220111230 its reverse (3211102231), we get a palindrome (16431213461).

The spelling of 13220111230 in words is "thirteen billion, two hundred twenty million, one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 179 223 358 446 895 1115 1790 2230 33119 39917 66238 79834 165595 199585 331190 399170 5928301 7385537 11856602 14771074 29641505 36927685 59283010 73855370 1322011123 2644022246 6610055615 13220111230