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202202010202020 = 223510946216690703
BaseRepresentation
bin101101111110011011010010…
…111111011010111110100100
3222111221022201202022102210120
4231332123102333122332210
5203000334204102431040
61554014153210121540
760406420211232063
oct5576332277327644
9874838652272716
10202202010202020
11594784333aa914
121a8181301202b0
1388a974c44c26a
1437d08b55481da
151859b11c1b7d0
hexb7e6d2fdafa4

202202010202020 has 96 divisors (see below), whose sum is σ = 571483538250240. Its totient is φ = 53414282718720.

The previous prime is 202202010202009. The next prime is 202202010202081. The reversal of 202202010202020 is 20202010202202.

It is a super-2 number, since 2×2022020102020202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26875989 + ... + 33566691.

It is an arithmetic number, because the mean of its divisors is an integer number (5952953523440).

Almost surely, 2202202010202020 is an apocalyptic number.

202202010202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202202010202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285741769125120).

202202010202020 is an abundant number, since it is smaller than the sum of its proper divisors (369281528048220).

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

202202010202020 is a wasteful number, since it uses less digits than its factorization.

202202010202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695445 (or 6695443 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 202202010202020 its reverse (20202010202202), we get a palindrome (222404020404222).

It can be divided in two parts, 2022020 and 10202020, that added together give a triangular number (12224040 = T4944).

The spelling of 202202010202020 in words is "two hundred two trillion, two hundred two billion, ten million, two hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1308 1635 2180 3270 4621 6540 9242 13863 18484 23105 27726 46210 55452 69315 92420 138630 277260 503689 1007378 1511067 2014756 2518445 3022134 5036890 6044268 6690703 7555335 10073780 13381406 15110670 20072109 26762812 30221340 33453515 40144218 66907030 80288436 100360545 133814060 200721090 401442180 729286627 1458573254 2187859881 2917146508 3646433135 4375719762 7292866270 8751439524 10939299405 14585732540 21878598810 30917738563 43757197620 61835477126 92753215689 123670954252 154588692815 185506431378 309177385630 371012862756 463766078445 618354771260 927532156890 1855064313780 3370033503367 6740067006734 10110100510101 13480134013468 16850167516835 20220201020202 33700335033670 40440402040404 50550502550505 67400670067340 101101005101010 202202010202020