Search a number
-
+
10621071 = 33393373
BaseRepresentation
bin101000100001…
…000010001111
3201222121101000
4220201002033
510204333241
61015351343
7156164136
oct50410217
921877330
1010621071
115aa484a
123682553
13227b476
1415a691d
15debeb6
hexa2108f

10621071 has 8 divisors (see below), whose sum is σ = 15734960. Its totient is φ = 7080696.

The previous prime is 10621063. The next prime is 10621097. The reversal of 10621071 is 17012601.

10621071 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10621071 - 23 = 10621063 is a prime.

It is a super-2 number, since 2×106210712 = 225614298374082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10621001) 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, 196660 + ... + 196713.

It is an arithmetic number, because the mean of its divisors is an integer number (1966870).

Almost surely, 210621071 is an apocalyptic number.

10621071 is a deficient number, since it is larger than the sum of its proper divisors (5113889).

10621071 is an equidigital number, since it uses as much as digits as its factorization.

10621071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393382 (or 393376 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 10621071 is about 3258.9984657867. The cubic root of 10621071 is about 219.8143820023.

Adding to 10621071 its reverse (17012601), we get a palindrome (27633672).

The spelling of 10621071 in words is "ten million, six hundred twenty-one thousand, seventy-one".

Divisors: 1 3 9 27 393373 1180119 3540357 10621071