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802313 = 1942227
BaseRepresentation
bin11000011111000001001
31111202120022
43003320021
5201133223
625110225
76551051
oct3037011
91452508
10802313
114a8876
12328375
13221255
1416c561
1510cac8
hexc3e09

802313 has 4 divisors (see below), whose sum is σ = 844560. Its totient is φ = 760068.

The previous prime is 802297. The next prime is 802331. The reversal of 802313 is 313208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 802313 - 24 = 802297 is a prime.

It is a super-2 number, since 2×8023132 = 1287412299938, 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 = 802291 and 802300.

It is not an unprimeable number, because it can be changed into a prime (802913) 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, 21095 + ... + 21132.

It is an arithmetic number, because the mean of its divisors is an integer number (211140).

2802313 is an apocalyptic number.

It is an amenable number.

802313 is a deficient number, since it is larger than the sum of its proper divisors (42247).

802313 is a wasteful number, since it uses less digits than its factorization.

802313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42246.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 802313 is about 895.7192640554. The cubic root of 802313 is about 92.9211572118.

The spelling of 802313 in words is "eight hundred two thousand, three hundred thirteen".

Divisors: 1 19 42227 802313