Search a number
-
+
10420445 = 57297727
BaseRepresentation
bin100111110000…
…000011011101
3201121102011102
4213300003131
510131423240
61011202445
7154400210
oct47600335
921542142
1010420445
115978042
1235a6425
13220b059
141553777
15dac815
hex9f00dd

10420445 has 8 divisors (see below), whose sum is σ = 14290944. Its totient is φ = 7145424.

The previous prime is 10420441. The next prime is 10420451. The reversal of 10420445 is 54402401.

10420445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10420445 - 22 = 10420441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420441) 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, 148829 + ... + 148898.

It is an arithmetic number, because the mean of its divisors is an integer number (1786368).

Almost surely, 210420445 is an apocalyptic number.

It is an amenable number.

10420445 is a deficient number, since it is larger than the sum of its proper divisors (3870499).

10420445 is an equidigital number, since it uses as much as digits as its factorization.

10420445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297739.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10420445 is about 3228.0714056538. The cubic root of 10420445 is about 218.4215184176.

Adding to 10420445 its reverse (54402401), we get a palindrome (64822846).

The spelling of 10420445 in words is "ten million, four hundred twenty thousand, four hundred forty-five".

Divisors: 1 5 7 35 297727 1488635 2084089 10420445