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20333130101 = 31364962077
BaseRepresentation
bin10010111011111100…
…101111000101110101
31221111001101000211122
4102323330233011311
5313120240130401
613201345313325
71316605516454
oct227374570565
957431330748
1020333130101
118694581659
123b35635845
131bc070533b
14dac640b9b
157e012121b
hex4bbf2f175

20333130101 has 4 divisors (see below), whose sum is σ = 20398092492. Its totient is φ = 20268167712.

The previous prime is 20333130043. The next prime is 20333130107. The reversal of 20333130101 is 10103133302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8812327876 + 11520802225 = 93874^2 + 107335^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333130101 - 210 = 20333129077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20333130101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333130107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32480726 + ... + 32481351.

It is an arithmetic number, because the mean of its divisors is an integer number (5099523123).

Almost surely, 220333130101 is an apocalyptic number.

It is an amenable number.

20333130101 is a deficient number, since it is larger than the sum of its proper divisors (64962391).

20333130101 is an equidigital number, since it uses as much as digits as its factorization.

20333130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64962390.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 20333130101 its reverse (10103133302), we get a palindrome (30436263403).

The spelling of 20333130101 in words is "twenty billion, three hundred thirty-three million, one hundred thirty thousand, one hundred one".

Divisors: 1 313 64962077 20333130101