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20200131222 = 2347426116811
BaseRepresentation
bin10010110100000001…
…011000101010010110
31221010210002222200020
4102310001120222112
5312332213144342
613140234530010
71313402165565
oct226401305226
957123088606
1020200131222
1186264a1627
123ab8b96906
131b9bca988b
14d98addbdc
157d35ee0ec
hex4b4058a96

20200131222 has 32 divisors (see below), whose sum is σ = 41271980544. Its totient is φ = 6588175200.

The previous prime is 20200131191. The next prime is 20200131229. The reversal of 20200131222 is 22213100202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200131229) 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, 1193197 + ... + 1210007.

It is an arithmetic number, because the mean of its divisors is an integer number (1289749392).

Almost surely, 220200131222 is an apocalyptic number.

20200131222 is an abundant number, since it is smaller than the sum of its proper divisors (21071849322).

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

20200131222 is a wasteful number, since it uses less digits than its factorization.

20200131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21124.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20200131222 its reverse (22213100202), we get a palindrome (42413231424).

The spelling of 20200131222 in words is "twenty billion, two hundred million, one hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 47 94 141 282 4261 8522 12783 16811 25566 33622 50433 100866 200267 400534 600801 790117 1201602 1580234 2370351 4740702 71631671 143263342 214895013 429790026 3366688537 6733377074 10100065611 20200131222