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18050912 = 2511192699
BaseRepresentation
bin100010011011…
…0111101100000
31020222002012022
41010312331200
514110112122
61442521012
7306300365
oct104667540
936862168
1018050912
11a209a10
126066168
133980219
14257c46c
1518b8642
hex1136f60

18050912 has 48 divisors (see below), whose sum is σ = 40824000. Its totient is φ = 7770240.

The previous prime is 18050911. The next prime is 18050917. The reversal of 18050912 is 21905081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5339 + ... + 8037.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 218050912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18050912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20412000).

18050912 is an abundant number, since it is smaller than the sum of its proper divisors (22773088).

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

18050912 is a wasteful number, since it uses less digits than its factorization.

18050912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 18050912 is about 4248.6364871568. The cubic root of 18050912 is about 262.3209942098.

Adding to 18050912 its reverse (21905081), we get a palindrome (39955993).

The spelling of 18050912 in words is "eighteen million, fifty thousand, nine hundred twelve".

Divisors: 1 2 4 8 11 16 19 22 32 38 44 76 88 152 176 209 304 352 418 608 836 1672 2699 3344 5398 6688 10796 21592 29689 43184 51281 59378 86368 102562 118756 205124 237512 410248 475024 564091 820496 950048 1128182 1640992 2256364 4512728 9025456 18050912