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20200222203220 = 2254124634417321
BaseRepresentation
bin1001001011111001110110…
…00100011001110101010100
32122112010022012212021200001
410211330323010121311110
510121430023341000340
6110543504242501044
74153263223456453
oct445747304316524
978463265767601
1020200222203220
1164889588a6864
122322b31664784
13b36b466623b7
144db9a5a60b9a
152506c2a9d29a
hex125f3b119d54

20200222203220 has 24 divisors (see below), whose sum is σ = 43455112156008. Its totient is φ = 7883013542400.

The previous prime is 20200222203167. The next prime is 20200222203233. The reversal of 20200222203220 is 2230222200202.

It can be written as a sum of positive squares in 4 ways, for example, as 280389312324 + 19919832890896 = 529518^2 + 4463164^2 .

It is a super-3 number, since 3×202002222032203 (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12317207841 + ... + 12317209480.

It is an arithmetic number, because the mean of its divisors is an integer number (1810629673167).

Almost surely, 220200222203220 is an apocalyptic number.

20200222203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200222203220 is an abundant number, since it is smaller than the sum of its proper divisors (23254889952788).

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

20200222203220 is a wasteful number, since it uses less digits than its factorization.

20200222203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24634417371 (or 24634417369 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20200222203220 its reverse (2230222200202), we get a palindrome (22430444403422).

The spelling of 20200222203220 in words is "twenty trillion, two hundred billion, two hundred twenty-two million, two hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 24634417321 49268834642 98537669284 123172086605 246344173210 492688346420 1010011110161 2020022220322 4040044440644 5050055550805 10100111101610 20200222203220