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18495412 = 2213379613
BaseRepresentation
bin100011010001…
…1011110110100
31021210122221021
41012203132310
514213323122
61500230524
7313131325
oct106433664
937718837
1018495412
11a492971
12623b444
133aa7640
14265644c
1519551c7
hex11a37b4

18495412 has 24 divisors (see below), whose sum is σ = 35802536. Its totient is φ = 8304768.

The previous prime is 18495409. The next prime is 18495413. The reversal of 18495412 is 21459481.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9278116 + 9217296 = 3046^2 + 3036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18495413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2883 + ... + 6730.

Almost surely, 218495412 is an apocalyptic number.

It is an amenable number.

18495412 is a deficient number, since it is larger than the sum of its proper divisors (17307124).

18495412 is a wasteful number, since it uses less digits than its factorization.

18495412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667 (or 9665 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 18495412 is about 4300.6292562833. The cubic root of 18495412 is about 264.4567582609.

The spelling of 18495412 in words is "eighteen million, four hundred ninety-five thousand, four hundred twelve".

Divisors: 1 2 4 13 26 37 52 74 148 481 962 1924 9613 19226 38452 124969 249938 355681 499876 711362 1422724 4623853 9247706 18495412