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18096312 = 23313311871
BaseRepresentation
bin100010100001…
…0000010111000
31021001101110210
41011002002320
514113040222
61443511120
7306546633
oct105020270
937041423
1018096312
11a240033
1260884a0
133997aa0
142590c1a
1518c6d0c
hex11420b8

18096312 has 64 divisors (see below), whose sum is σ = 50319360. Its totient is φ = 5385600.

The previous prime is 18096311. The next prime is 18096317. The reversal of 18096312 is 21369081.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18096312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18096311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8737 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 218096312 is an apocalyptic number.

18096312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18096312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25159680).

18096312 is an abundant number, since it is smaller than the sum of its proper divisors (32223048).

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

18096312 is a wasteful number, since it uses less digits than its factorization.

18096312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 18096312 is about 4253.9760224994. The cubic root of 18096312 is about 262.5407320013.

The spelling of 18096312 in words is "eighteen million, ninety-six thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 24 26 31 39 52 62 78 93 104 124 156 186 248 312 372 403 744 806 1209 1612 1871 2418 3224 3742 4836 5613 7484 9672 11226 14968 22452 24323 44904 48646 58001 72969 97292 116002 145938 174003 194584 232004 291876 348006 464008 583752 696012 754013 1392024 1508026 2262039 3016052 4524078 6032104 9048156 18096312