Search a number
-
+
20412469390 = 252041246939
BaseRepresentation
bin10011000000101011…
…011001000010001110
31221200120122212212211
4103000223121002032
5313301043010030
613213302021034
71321561061365
oct230053310216
957616585784
1020412469390
118725341415
123b5811777a
131c03c93a71
14db8db47dc
157e709412a
hex4c0ad908e

20412469390 has 8 divisors (see below), whose sum is σ = 36742444920. Its totient is φ = 8164987752.

The previous prime is 20412469379. The next prime is 20412469391. The reversal of 20412469390 is 9396421402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412469391) 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, 1020623460 + ... + 1020623479.

It is an arithmetic number, because the mean of its divisors is an integer number (4592805615).

Almost surely, 220412469390 is an apocalyptic number.

20412469390 is a deficient number, since it is larger than the sum of its proper divisors (16329975530).

20412469390 is a wasteful number, since it uses less digits than its factorization.

20412469390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041246946.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 20412469390 in words is "twenty billion, four hundred twelve million, four hundred sixty-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 2041246939 4082493878 10206234695 20412469390