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20830243196 = 227315182393
BaseRepresentation
bin10011011001100101…
…000100100101111100
31222202200202222210202
4103121211010211330
5320130020240241
613322544223032
71335123101000
oct233145044574
958680688722
1020830243196
11891a147024
12405400aa78
131c6c6b93b9
141018684700
1581dab8d9b
hex4d994497c

20830243196 has 24 divisors (see below), whose sum is σ = 42510703200. Its totient is φ = 8927246496.

The previous prime is 20830243177. The next prime is 20830243271. The reversal of 20830243196 is 69134203802.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7589825 + ... + 7592568.

It is an arithmetic number, because the mean of its divisors is an integer number (1771279300).

Almost surely, 220830243196 is an apocalyptic number.

It is an amenable number.

20830243196 is an abundant number, since it is smaller than the sum of its proper divisors (21680460004).

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

20830243196 is a wasteful number, since it uses less digits than its factorization.

20830243196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15182418 (or 15182402 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 20830243196 its reverse (69134203802), we get a palindrome (89964446998).

The spelling of 20830243196 in words is "twenty billion, eight hundred thirty million, two hundred forty-three thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 15182393 30364786 60729572 106276751 212553502 425107004 743937257 1487874514 2975749028 5207560799 10415121598 20830243196