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302023130220 = 22355731286381
BaseRepresentation
bin1000110010100011111…
…10110011110001101100
31001212120111210200200000
410121101332303301230
514422020410131340
6350425243504300
730551262151230
oct4312176636154
91055514720600
10302023130220
111070a6201a49
124a64ab28090
1322633014096
1410891adc5c0
157cca0ded30
hex4651fb3c6c

302023130220 has 288 divisors, whose sum is σ = 1120821252096. Its totient is φ = 66806726400.

The previous prime is 302023130219. The next prime is 302023130221. The reversal of 302023130220 is 22031320203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (302023130219) and next prime (302023130221).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 302023130193 and 302023130202.

It is not an unprimeable number, because it can be changed into a prime (302023130221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 911430 + ... + 1197810.

Almost surely, 2302023130220 is an apocalyptic number.

302023130220 is a gapful number since it is divisible by the number (30) 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 302023130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560410626048).

302023130220 is an abundant number, since it is smaller than the sum of its proper divisors (818798121876).

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

302023130220 is a wasteful number, since it uses less digits than its factorization.

302023130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286443 (or 286429 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 302023130220 its reverse (22031320203), we get a palindrome (324054450423).

The spelling of 302023130220 in words is "three hundred two billion, twenty-three million, one hundred thirty thousand, two hundred twenty".