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18119004 = 2233153919
BaseRepresentation
bin100010100011…
…1100101011100
31021002112121020
41011013211130
514114302004
61444204140
7310003041
oct105074534
937075536
1018119004
11a256092
126099650
1339a5207
1425991c8
1518cd8d9
hex114795c

18119004 has 48 divisors (see below), whose sum is σ = 44513280. Its totient is φ = 5728320.

The previous prime is 18118979. The next prime is 18119041. The reversal of 18119004 is 40091181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19257 + ... + 20175.

It is an arithmetic number, because the mean of its divisors is an integer number (927360).

Almost surely, 218119004 is an apocalyptic number.

It is an amenable number.

18119004 is an abundant number, since it is smaller than the sum of its proper divisors (26394276).

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

18119004 is a wasteful number, since it uses less digits than its factorization.

18119004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 18119004 is about 4256.6423387454. The cubic root of 18119004 is about 262.6504244411.

The spelling of 18119004 in words is "eighteen million, one hundred nineteen thousand, four".

Divisors: 1 2 3 4 6 12 31 53 62 93 106 124 159 186 212 318 372 636 919 1643 1838 2757 3286 3676 4929 5514 6572 9858 11028 19716 28489 48707 56978 85467 97414 113956 146121 170934 194828 292242 341868 584484 1509917 3019834 4529751 6039668 9059502 18119004