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20311010322 = 234003784551
BaseRepresentation
bin10010111010101000…
…010110110000010010
31221102111202020012120
4102322220112300102
5313044104312242
613155235235110
71316216511351
oct227250266022
957374666176
1020311010322
118683043749
123b2a148a96
131bb8c5c105
14da9723998
157dd2021ec
hex4baa16c12

20311010322 has 16 divisors (see below), whose sum is σ = 40623515712. Its totient is φ = 6770087600.

The previous prime is 20311010309. The next prime is 20311010327. The reversal of 20311010322 is 22301011302.

It is not an unprimeable number, because it can be changed into a prime (20311010327) 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, 197947 + ... + 282497.

It is an arithmetic number, because the mean of its divisors is an integer number (2538969732).

Almost surely, 220311010322 is an apocalyptic number.

20311010322 is an abundant number, since it is smaller than the sum of its proper divisors (20312505390).

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

20311010322 is a wasteful number, since it uses less digits than its factorization.

20311010322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124593.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20311010322 its reverse (22301011302), we get a palindrome (42612021624).

The spelling of 20311010322 in words is "twenty billion, three hundred eleven million, ten thousand, three hundred twenty-two".

Divisors: 1 2 3 6 40037 80074 84551 120111 169102 240222 253653 507306 3385168387 6770336774 10155505161 20311010322