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18270714 = 2371171557
BaseRepresentation
bin100010110110…
…0100111111010
31021101020201010
41011230213322
514134130324
61451334350
7311204250
oct105544772
937336633
1018270714
11a34a070
1261513b6
133a29297
1425d85d0
15190d829
hex116c9fa

18270714 has 64 divisors (see below), whose sum is σ = 46282752. Its totient is φ = 4670400.

The previous prime is 18270713. The next prime is 18270719. The reversal of 18270714 is 41707281.

It is a super-3 number, since 3×182707143 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18270713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32524 + ... + 33080.

It is an arithmetic number, because the mean of its divisors is an integer number (723168).

Almost surely, 218270714 is an apocalyptic number.

18270714 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18270714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23141376).

18270714 is an abundant number, since it is smaller than the sum of its proper divisors (28012038).

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

18270714 is a wasteful number, since it uses less digits than its factorization.

18270714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 18270714 is about 4274.4255754429. The cubic root of 18270714 is about 263.3814432565.

Adding to 18270714 its reverse (41707281), we get a palindrome (59977995).

The spelling of 18270714 in words is "eighteen million, two hundred seventy thousand, seven hundred fourteen".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 71 77 142 154 213 231 426 462 497 557 781 994 1114 1491 1562 1671 2343 2982 3342 3899 4686 5467 6127 7798 10934 11697 12254 16401 18381 23394 32802 36762 39547 42889 79094 85778 118641 128667 237282 257334 276829 435017 553658 830487 870034 1305051 1660974 2610102 3045119 6090238 9135357 18270714