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20302034292 = 22332931211991
BaseRepresentation
bin10010111010000110…
…000111010101110100
31221101212212012102000
4102322012013111310
5313034310044132
613154315015300
71316050305231
oct227206072564
957355765360
1020302034292
118678a72941
123b2713a530
131bb7138657
14da8468788
157dc52c87c
hex4ba187574

20302034292 has 192 divisors, whose sum is σ = 56529715200. Its totient is φ = 6286896000.

The previous prime is 20302034267. The next prime is 20302034293. The reversal of 20302034292 is 29243020302.

20302034292 is a `hidden beast` number, since 2 + 0 + 30 + 203 + 429 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302034293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20485917 + ... + 20486907.

It is an arithmetic number, because the mean of its divisors is an integer number (294425600).

Almost surely, 220302034292 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 20302034292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28264857600).

20302034292 is an abundant number, since it is smaller than the sum of its proper divisors (36227680908).

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

20302034292 is a wasteful number, since it uses less digits than its factorization.

20302034292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 20302034292 its reverse (29243020302), we get a palindrome (49545054594).

The spelling of 20302034292 in words is "twenty billion, three hundred two million, thirty-four thousand, two hundred ninety-two".