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20223220220252 = 2272961408285961
BaseRepresentation
bin1001001100100100101011…
…10110111000000101011100
32122121022122222200121010122
410212102111312320011130
510122314123334022002
6111002230310054112
74155036151420010
oct446222566700534
978538588617118
1020223220220252
11649768a661405
12232748b64a338
13b390701a8aba
144dcb48194540
152510bbb1a6a2
hex126495db815c

20223220220252 has 48 divisors (see below), whose sum is σ = 42527065801920. Its totient is φ = 8231044953600.

The previous prime is 20223220220251. The next prime is 20223220220263. The reversal of 20223220220252 is 25202202232202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223220220251) 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, 204093449 + ... + 204192512.

It is an arithmetic number, because the mean of its divisors is an integer number (885980537540).

Almost surely, 220223220220252 is an apocalyptic number.

It is an amenable number.

20223220220252 is an abundant number, since it is smaller than the sum of its proper divisors (22303845581668).

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

20223220220252 is a wasteful number, since it uses less digits than its factorization.

20223220220252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408286062 (or 408286060 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 20223220220252 its reverse (25202202232202), we get a palindrome (45425422452454).

The spelling of 20223220220252 in words is "twenty trillion, two hundred twenty-three billion, two hundred twenty million, two hundred twenty thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 29 58 61 116 122 203 244 406 427 812 854 1708 1769 3538 7076 12383 24766 49532 408285961 816571922 1633143844 2858001727 5716003454 11432006908 11840292869 23680585738 24905443621 47361171476 49810887242 82882050083 99621774484 165764100166 174338105347 331528200332 348676210694 697352421388 722257865009 1444515730018 2889031460036 5055805055063 10111610110126 20223220220252