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20331302230 = 252936939011
BaseRepresentation
bin10010111011110101…
…110000110101010110
31221110220221011110201
4102323311300311112
5313114303132410
613201242211114
71316554134421
oct227365606526
957426834421
1020331302230
118693543318
123b34ab3a9a
131bc0215365
14dac2c69b8
157dedae83a
hex4bbd70d56

20331302230 has 16 divisors (see below), whose sum is σ = 36721251504. Its totient is φ = 8104763680.

The previous prime is 20331302227. The next prime is 20331302239. The reversal of 20331302230 is 3220313302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20331302198 and 20331302207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331302239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3466576 + ... + 3472435.

It is an arithmetic number, because the mean of its divisors is an integer number (2295078219).

Almost surely, 220331302230 is an apocalyptic number.

20331302230 is a deficient number, since it is larger than the sum of its proper divisors (16389949274).

20331302230 is a wasteful number, since it uses less digits than its factorization.

20331302230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939311.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20331302230 its reverse (3220313302), we get a palindrome (23551615532).

The spelling of 20331302230 in words is "twenty billion, three hundred thirty-one million, three hundred two thousand, two hundred thirty".

Divisors: 1 2 5 10 293 586 1465 2930 6939011 13878022 34695055 69390110 2033130223 4066260446 10165651115 20331302230