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202313022212 = 22731019144709
BaseRepresentation
bin1011110001101011001…
…0111011101100000100
3201100012112122101110202
42330122302323230010
511303314113202322
6232535154110032
720421335213000
oct2743262735404
9640175571422
10202313022212
1178889477004
123326227b318
13161025a3682
149b1337d700
1553e1569292
hex2f1acbbb04

202313022212 has 48 divisors (see below), whose sum is σ = 413291760000. Its totient is φ = 86619893472.

The previous prime is 202313022137. The next prime is 202313022217. The reversal of 202313022212 is 212220313202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (202313022217) 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, 1325714 + ... + 1470422.

It is an arithmetic number, because the mean of its divisors is an integer number (8610245000).

Almost surely, 2202313022212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202313022212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206645880000).

202313022212 is an abundant number, since it is smaller than the sum of its proper divisors (210978737788).

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

202313022212 is a wasteful number, since it uses less digits than its factorization.

202313022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145753 (or 145737 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202313022212 its reverse (212220313202), we get a palindrome (414533335414).

The spelling of 202313022212 in words is "two hundred two billion, three hundred thirteen million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1019 1372 2038 4076 7133 14266 28532 49931 99862 144709 199724 289418 349517 578836 699034 1012963 1398068 2025926 4051852 7090741 14181482 28362964 49635187 99270374 147458471 198540748 294916942 589833884 1032209297 2064418594 4128837188 7225465079 14450930158 28901860316 50578255553 101156511106 202313022212