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802830 = 23573823
BaseRepresentation
bin11000100000000001110
31111210021110
43010000032
5201142310
625112450
76552420
oct3040016
91453243
10802830
114a91a6
12328726
13221562
1416c810
1510cd20
hexc400e

802830 has 32 divisors (see below), whose sum is σ = 2202624. Its totient is φ = 183456.

The previous prime is 802829. The next prime is 802831. The reversal of 802830 is 38208.

It is an interprime number because it is at equal distance from previous prime (802829) and next prime (802831).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 802797 and 802806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1702 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (68832).

2802830 is an apocalyptic number.

802830 is an abundant number, since it is smaller than the sum of its proper divisors (1399794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

802830 is a wasteful number, since it uses less digits than its factorization.

802830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 802830 is about 896.0078124659. The cubic root of 802830 is about 92.9411119855.

The spelling of 802830 in words is "eight hundred two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 3823 7646 11469 19115 22938 26761 38230 53522 57345 80283 114690 133805 160566 267610 401415 802830