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20031302210 = 254394562939
BaseRepresentation
bin10010101001111101…
…010110101001000010
31220201000102120210212
4102221331112221002
5312011003132320
613111404154122
71306252154663
oct225175265102
956630376725
1020031302210
11854a169917
123a70538942
131b7301755a
14d8051336a
157c38a09c5
hex4a9f56a42

20031302210 has 16 divisors (see below), whose sum is σ = 36138484800. Its totient is φ = 7994267376.

The previous prime is 20031302129. The next prime is 20031302231. The reversal of 20031302210 is 1220313002.

It is a happy 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, 2277080 + ... + 2285859.

It is an arithmetic number, because the mean of its divisors is an integer number (2258655300).

Almost surely, 220031302210 is an apocalyptic number.

20031302210 is a deficient number, since it is larger than the sum of its proper divisors (16107182590).

20031302210 is a wasteful number, since it uses less digits than its factorization.

20031302210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563385.

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

Adding to 20031302210 its reverse (1220313002), we get a palindrome (21251615212).

The spelling of 20031302210 in words is "twenty billion, thirty-one million, three hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 439 878 2195 4390 4562939 9125878 22814695 45629390 2003130221 4006260442 10015651105 20031302210