Search a number
-
+
802816031 = 7433108007
BaseRepresentation
bin101111110110100…
…000000000011111
32001221122021120002
4233312200000133
53121010103111
6211355044515
725615552343
oct5766400037
92057567502
10802816031
11382194626
121a4a4073b
13ca42a894
147889d623
154a73163b
hex2fda001f

802816031 has 4 divisors (see below), whose sum is σ = 802931472. Its totient is φ = 802700592.

The previous prime is 802815997. The next prime is 802816033. The reversal of 802816031 is 130618208.

802816031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-802816031 is a prime.

It is a super-2 number, since 2×8028160312 = 1289027159261185922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 802815985 and 802816003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802816033) 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, 46571 + ... + 61436.

It is an arithmetic number, because the mean of its divisors is an integer number (200732868).

Almost surely, 2802816031 is an apocalyptic number.

802816031 is a deficient number, since it is larger than the sum of its proper divisors (115441).

802816031 is a wasteful number, since it uses less digits than its factorization.

802816031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115440.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 802816031 is about 28334.0083821545. The cubic root of 802816031 is about 929.4057293329.

The spelling of 802816031 in words is "eight hundred two million, eight hundred sixteen thousand, thirty-one".

Divisors: 1 7433 108007 802816031