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13202444220 = 2235746916701
BaseRepresentation
bin11000100101110110…
…10100111110111100
31021002002201122201120
430102323110332330
5204014311203340
610022022110540
7645111632010
oct142273247674
937062648646
1013202444220
115665487829
12268557b450
131325303694
148d35c6540
155240e04d0
hex312ed4fbc

13202444220 has 96 divisors (see below), whose sum is σ = 42263133696. Its totient is φ = 3016608000.

The previous prime is 13202444209. The next prime is 13202444251. The reversal of 13202444220 is 2244420231.

It is a super-4 number, since 4×132024442204 (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1966870 + ... + 1973570.

It is an arithmetic number, because the mean of its divisors is an integer number (440240976).

Almost surely, 213202444220 is an apocalyptic number.

13202444220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13202444220 is an abundant number, since it is smaller than the sum of its proper divisors (29060689476).

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

13202444220 is a wasteful number, since it uses less digits than its factorization.

13202444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411 (or 11409 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 13202444220 its reverse (2244420231), we get a palindrome (15446864451).

The spelling of 13202444220 in words is "thirteen billion, two hundred two million, four hundred forty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 4691 6701 9382 13402 14073 18764 20103 23455 26804 28146 32837 33505 40206 46907 46910 56292 65674 67010 70365 80412 93814 93820 98511 100515 131348 134020 140721 140730 164185 187628 197022 201030 234535 281442 281460 328370 394044 402060 469070 492555 562884 656740 703605 938140 985110 1407210 1970220 2814420 31434391 62868782 94303173 125737564 157171955 188606346 220040737 314343910 377212692 440081474 471515865 628687820 660122211 880162948 943031730 1100203685 1320244422 1886063460 2200407370 2640488844 3300611055 4400814740 6601222110 13202444220