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19114218 = 234117989
BaseRepresentation
bin100100011101…
…0100011101010
31022222002210000
41020322203222
514343123333
61521403430
7321316404
oct110724352
938862700
1019114218
11a875882
126499576
133c631b6
142777b74
151a28713
hex123a8ea

19114218 has 20 divisors (see below), whose sum is σ = 42830370. Its totient is φ = 6371352.

The previous prime is 19114217. The next prime is 19114223. The reversal of 19114218 is 81241191.

It can be written as a sum of positive squares in only one way, i.e., 17363889 + 1750329 = 4167^2 + 1323^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 19114191 and 19114200.

It is not an unprimeable number, because it can be changed into a prime (19114211) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 58833 + ... + 59156.

Almost surely, 219114218 is an apocalyptic number.

19114218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19114218 is an abundant number, since it is smaller than the sum of its proper divisors (23716152).

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

19114218 is a wasteful number, since it uses less digits than its factorization.

19114218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118003 (or 117994 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 19114218 is about 4371.9810155123. The cubic root of 19114218 is about 267.3737978658.

The spelling of 19114218 in words is "nineteen million, one hundred fourteen thousand, two hundred eighteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 117989 235978 353967 707934 1061901 2123802 3185703 6371406 9557109 19114218