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18119292 = 2231509941
BaseRepresentation
bin100010100011…
…1101001111100
31021002112222220
41011013221330
514114304132
61444205340
7310003632
oct105075174
937075886
1018119292
11a256324
126099850
1339a5399
142599352
1518cda2c
hex1147a7c

18119292 has 12 divisors (see below), whose sum is σ = 42278376. Its totient is φ = 6039760.

The previous prime is 18119291. The next prime is 18119303. The reversal of 18119292 is 29291181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18119291) 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 3 ways as a sum of consecutive naturals, for example, 754959 + ... + 754982.

It is an arithmetic number, because the mean of its divisors is an integer number (3523198).

Almost surely, 218119292 is an apocalyptic number.

18119292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18119292 is an abundant number, since it is smaller than the sum of its proper divisors (24159084).

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

18119292 is a wasteful number, since it uses less digits than its factorization.

18119292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509948 (or 1509946 counting only the distinct ones).

The product of its digits is 2592, while the sum is 33.

The square root of 18119292 is about 4256.6761680917. The cubic root of 18119292 is about 262.6518160356.

The spelling of 18119292 in words is "eighteen million, one hundred nineteen thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 1509941 3019882 4529823 6039764 9059646 18119292