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813490302 = 23724318719
BaseRepresentation
bin110000011111001…
…110000001111110
32002200201120220110
4300133032001332
53131223142202
6212415530450
726105360562
oct6037160176
92080646813
10813490302
11388215339
121a8529a26
13cc6c7311
147a07b6a2
154b63e26c
hex307ce07e

813490302 has 16 divisors (see below), whose sum is σ = 1627292160. Its totient is φ = 271111512.

The previous prime is 813490283. The next prime is 813490333. The reversal of 813490302 is 203094318.

It is a self number, because there is not a number n which added to its sum of digits gives 813490302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34099 + ... + 52817.

It is an arithmetic number, because the mean of its divisors is an integer number (101705760).

Almost surely, 2813490302 is an apocalyptic number.

813490302 is an abundant number, since it is smaller than the sum of its proper divisors (813801858).

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

813490302 is a wasteful number, since it uses less digits than its factorization.

813490302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25967.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 813490302 is about 28521.7513838123. The cubic root of 813490302 is about 933.5067443376.

The spelling of 813490302 in words is "eight hundred thirteen million, four hundred ninety thousand, three hundred two".

Divisors: 1 2 3 6 7243 14486 18719 21729 37438 43458 56157 112314 135581717 271163434 406745151 813490302