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813420514 = 21921405803
BaseRepresentation
bin110000011110111…
…100111111100010
32002200121001011201
4300132330333202
53131213424024
6212414231414
726104650244
oct6036747742
92080531151
10813420514
11388177965
121a84b556a
13cc6a161a
147a060094
154b628744
hex307bcfe2

813420514 has 8 divisors (see below), whose sum is σ = 1284348240. Its totient is φ = 385304436.

The previous prime is 813420511. The next prime is 813420581. The reversal of 813420514 is 415024318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (813420511) 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, 10702864 + ... + 10702939.

It is an arithmetic number, because the mean of its divisors is an integer number (160543530).

Almost surely, 2813420514 is an apocalyptic number.

813420514 is a deficient number, since it is larger than the sum of its proper divisors (470927726).

813420514 is a wasteful number, since it uses less digits than its factorization.

813420514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21405824.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 813420514 is about 28520.5279404151. The cubic root of 813420514 is about 933.4800489029.

The spelling of 813420514 in words is "eight hundred thirteen million, four hundred twenty thousand, five hundred fourteen".

Divisors: 1 2 19 38 21405803 42811606 406710257 813420514