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13021230222 = 23371113240893
BaseRepresentation
bin11000010000010000…
…00011010010001110
31020121110202000212000
430020020003102032
5203131413331342
65552030053130
7640451426220
oct141010032216
936543660760
1013021230222
115582165aa0
12263494a1a6
1312c68c6070
148b74d4410
1551324744c
hex30820348e

13021230222 has 128 divisors (see below), whose sum is σ = 38851384320. Its totient is φ = 3121960320.

The previous prime is 13021230199. The next prime is 13021230253. The reversal of 13021230222 is 22203212031.

13021230222 is a `hidden beast` number, since 130 + 212 + 302 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13021230195 and 13021230204.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 66393 + ... + 174500.

It is an arithmetic number, because the mean of its divisors is an integer number (303526440).

Almost surely, 213021230222 is an apocalyptic number.

13021230222 is an abundant number, since it is smaller than the sum of its proper divisors (25830154098).

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

13021230222 is a wasteful number, since it uses less digits than its factorization.

13021230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240935 (or 240929 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13021230222 its reverse (22203212031), we get a palindrome (35224442253).

The spelling of 13021230222 in words is "thirteen billion, twenty-one million, two hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 9 11 13 14 18 21 22 26 27 33 39 42 54 63 66 77 78 91 99 117 126 143 154 182 189 198 231 234 273 286 297 351 378 429 462 546 594 693 702 819 858 1001 1287 1386 1638 2002 2079 2457 2574 3003 3861 4158 4914 6006 7722 9009 18018 27027 54054 240893 481786 722679 1445358 1686251 2168037 2649823 3131609 3372502 4336074 5058753 5299646 6263218 6504111 7949469 9394827 10117506 13008222 15176259 15898938 18548761 18789654 21921263 23848407 28184481 30352518 34447699 37097522 43842526 45528777 47696814 55646283 56368962 65763789 68895398 71545221 84553443 91057554 103343097 111292566 131527578 143090442 166938849 169106886 197291367 206686194 241133893 310029291 333877698 394582734 482267786 500816547 591874101 620058582 723401679 930087873 1001633094 1183748202 1446803358 1860175746 2170205037 4340410074 6510615111 13021230222