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302020011320 = 23523521630101
BaseRepresentation
bin1000110010100011100…
…10111010010100111000
31001212120021221020100012
410121101302322110320
514422014110330240
6350425053001052
730551223511226
oct4312162722470
91055507836305
10302020011320
111070a4471745
124a649a83188
1322632491591
1410891529b16
157cc9bc5b65
hex4651cba538

302020011320 has 64 divisors (see below), whose sum is σ = 710452607040. Its totient is φ = 115333504000.

The previous prime is 302020011277. The next prime is 302020011373. The reversal of 302020011320 is 23110020203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 302020011295 and 302020011304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164270 + ... + 794370.

It is an arithmetic number, because the mean of its divisors is an integer number (11100821985).

Almost surely, 2302020011320 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 302020011320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355226303520).

302020011320 is an abundant number, since it is smaller than the sum of its proper divisors (408432595720).

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

302020011320 is a wasteful number, since it uses less digits than its factorization.

302020011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630656 (or 630652 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 302020011320 its reverse (23110020203), we get a palindrome (325130031523).

The spelling of 302020011320 in words is "three hundred two billion, twenty million, eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 521 920 1042 2084 2605 4168 5210 10420 11983 20840 23966 47932 59915 95864 119830 239660 479320 630101 1260202 2520404 3150505 5040808 6301010 12602020 14492323 25204040 28984646 57969292 72461615 115938584 144923230 289846460 328282621 579692920 656565242 1313130484 1641413105 2626260968 3282826210 6565652420 7550500283 13131304840 15101000566 30202001132 37752501415 60404002264 75505002830 151010005660 302020011320