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202012303220 = 2257131743151841
BaseRepresentation
bin1011110000100011011…
…1110001111101110100
3201022102120210021120022
42330020313301331310
511302210122200340
6232445252424312
720411024150150
oct2741067617564
9638376707508
10202012303220
1178744751412
1233199618098
13160851b3540
149ac5460060
1553c4e673b5
hex2f08df1f74

202012303220 has 192 divisors, whose sum is σ = 565697696256. Its totient is φ = 58773012480.

The previous prime is 202012303147. The next prime is 202012303231. The reversal of 202012303220 is 22303210202.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1254500 + ... + 1406340.

It is an arithmetic number, because the mean of its divisors is an integer number (2946342168).

Almost surely, 2202012303220 is an apocalyptic number.

202012303220 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 202012303220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282848848128).

202012303220 is an abundant number, since it is smaller than the sum of its proper divisors (363685393036).

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

202012303220 is a wasteful number, since it uses less digits than its factorization.

202012303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151930 (or 151928 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 202012303220 its reverse (22303210202), we get a palindrome (224315513422).

The spelling of 202012303220 in words is "two hundred two billion, twelve million, three hundred three thousand, two hundred twenty".