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814438107 = 32731417019
BaseRepresentation
bin110000100010110…
…101011011011011
32002202111202001100
4300202311123123
53131444004412
6212452122443
726116416060
oct6042653333
92082452040
10814438107
1138880244a
121a8906423
13cc969852
147a246c67
154b779edc
hex308b56db

814438107 has 24 divisors (see below), whose sum is σ = 1387842560. Its totient is φ = 450379440.

The previous prime is 814438099. The next prime is 814438123. The reversal of 814438107 is 701834418.

It is not a de Polignac number, because 814438107 - 23 = 814438099 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814438187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206557 + ... + 210462.

Almost surely, 2814438107 is an apocalyptic number.

814438107 is a deficient number, since it is larger than the sum of its proper divisors (573404453).

814438107 is a wasteful number, since it uses less digits than its factorization.

814438107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417063 (or 417060 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 814438107 is about 28538.3620237742. The cubic root of 814438107 is about 933.8691493789.

The spelling of 814438107 in words is "eight hundred fourteen million, four hundred thirty-eight thousand, one hundred seven".

Divisors: 1 3 7 9 21 31 63 93 217 279 651 1953 417019 1251057 2919133 3753171 8757399 12927589 26272197 38782767 90493123 116348301 271479369 814438107