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202331322220 = 22510116566111
BaseRepresentation
bin1011110001101111100…
…0101111011101101100
3201100020211002010100211
42330123320233131230
511303333304302340
6232541050232204
720421646601536
oct2743370573554
9640224063324
10202331322220
1178898836085
1233268425664
1316106310091
149b15984856
1553e2e815ea
hex2f1be2f76c

202331322220 has 12 divisors (see below), whose sum is σ = 424895776704. Its totient is φ = 80932528880.

The previous prime is 202331322187. The next prime is 202331322233. The reversal of 202331322220 is 22223133202.

It is a junction number, because it is equal to n+sod(n) for n = 202331322191 and 202331322200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5058283036 + ... + 5058283075.

It is an arithmetic number, because the mean of its divisors is an integer number (35407981392).

Almost surely, 2202331322220 is an apocalyptic number.

202331322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202331322220 is an abundant number, since it is smaller than the sum of its proper divisors (222564454484).

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

202331322220 is a wasteful number, since it uses less digits than its factorization.

202331322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10116566120 (or 10116566118 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 202331322220 its reverse (22223133202), we get a palindrome (224554455422).

The spelling of 202331322220 in words is "two hundred two billion, three hundred thirty-one million, three hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10116566111 20233132222 40466264444 50582830555 101165661110 202331322220