Search a number
-
+
20350667237 = 23884811619
BaseRepresentation
bin10010111100111111…
…101000100111100101
31221112021101000021012
4102330333220213211
5313134232322422
613203213232005
71320210550235
oct227477504745
957467330235
1020350667237
1186a346a55a
123b3b492605
131bc4235744
14db0ac7cc5
157e19374e2
hex4bcfe89e5

20350667237 has 4 divisors (see below), whose sum is σ = 21235478880. Its totient is φ = 19465855596.

The previous prime is 20350667213. The next prime is 20350667243. The reversal of 20350667237 is 73276605302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20350667237 - 220 = 20349618661 is a prime.

It is a super-2 number, since 2×203506672372 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20350667194 and 20350667203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350667137) 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, 442405787 + ... + 442405832.

It is an arithmetic number, because the mean of its divisors is an integer number (5308869720).

Almost surely, 220350667237 is an apocalyptic number.

It is an amenable number.

20350667237 is a deficient number, since it is larger than the sum of its proper divisors (884811643).

20350667237 is an equidigital number, since it uses as much as digits as its factorization.

20350667237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884811642.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 20350667237 in words is "twenty billion, three hundred fifty million, six hundred sixty-seven thousand, two hundred thirty-seven".

Divisors: 1 23 884811619 20350667237