Search a number
-
+
20071473 = 38837577
BaseRepresentation
bin100110010010…
…0010000110001
31101202201212220
41030210100301
520114241343
61554111253
7332414262
oct114442061
941681786
1020071473
1110369aa4
12687b529
134209b16
142946969
151b67183
hex1324431

20071473 has 8 divisors (see below), whose sum is σ = 26795808. Its totient is φ = 13364064.

The previous prime is 20071417. The next prime is 20071481. The reversal of 20071473 is 37417002.

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

It is not a de Polignac number, because 20071473 - 26 = 20071409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20071483) 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, 1140 + ... + 6437.

It is an arithmetic number, because the mean of its divisors is an integer number (3349476).

Almost surely, 220071473 is an apocalyptic number.

It is an amenable number.

20071473 is a deficient number, since it is larger than the sum of its proper divisors (6724335).

20071473 is an equidigital number, since it uses as much as digits as its factorization.

20071473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8463.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20071473 is about 4480.1197528638. The cubic root of 20071473 is about 271.7647231978.

Adding to 20071473 its reverse (37417002), we get a palindrome (57488475).

The spelling of 20071473 in words is "twenty million, seventy-one thousand, four hundred seventy-three".

Divisors: 1 3 883 2649 7577 22731 6690491 20071473