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20313022330 = 252031302233
BaseRepresentation
bin10010111010110000…
…000001111101111010
31221102122112110011101
4102322300001331322
5313100113203310
613155350322014
71316242561306
oct227260017572
957378473141
1020313022330
118684198367
123b2a95930a
131bb94b4b53
14da9ac8d06
157dd49d43a
hex4bac01f7a

20313022330 has 8 divisors (see below), whose sum is σ = 36563440212. Its totient is φ = 8125208928.

The previous prime is 20313022321. The next prime is 20313022343. The reversal of 20313022330 is 3322031302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18956057761 + 1356964569 = 137681^2 + 36837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20313022298 and 20313022307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015651107 + ... + 1015651126.

Almost surely, 220313022330 is an apocalyptic number.

20313022330 is a deficient number, since it is larger than the sum of its proper divisors (16250417882).

20313022330 is a wasteful number, since it uses less digits than its factorization.

20313022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031302240.

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

Adding to 20313022330 its reverse (3322031302), we get a palindrome (23635053632).

The spelling of 20313022330 in words is "twenty billion, three hundred thirteen million, twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 2031302233 4062604466 10156511165 20313022330