Search a number
-
+
20302008219 = 329772308883
BaseRepresentation
bin10010111010000110…
…000000111110011011
31221101212210212122100
4102322012000332123
5313034303230334
613154314254443
71316050136223
oct227206007633
957355725570
1020302008219
118678a55299
123b27127423
131bb712981c
14da845d083
157dc524c99
hex4ba180f9b

20302008219 has 12 divisors (see below), whose sum is σ = 29355151176. Its totient is φ = 13520812992.

The previous prime is 20302008211. The next prime is 20302008229. The reversal of 20302008219 is 91280020302.

It is a happy number.

It is not a de Polignac number, because 20302008219 - 23 = 20302008211 is a prime.

It is a super-2 number, since 2×203020082192 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20302008192 and 20302008201.

It is not an unprimeable number, because it can be changed into a prime (20302008211) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1145649 + ... + 1163234.

It is an arithmetic number, because the mean of its divisors is an integer number (2446262598).

Almost surely, 220302008219 is an apocalyptic number.

20302008219 is a deficient number, since it is larger than the sum of its proper divisors (9053142957).

20302008219 is a wasteful number, since it uses less digits than its factorization.

20302008219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309866 (or 2309863 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 20302008219 in words is "twenty billion, three hundred two million, eight thousand, two hundred nineteen".

Divisors: 1 3 9 977 2931 8793 2308883 6926649 20779947 2255778691 6767336073 20302008219