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19380414 = 2311292861
BaseRepresentation
bin100100111101…
…1100010111110
31100110121221010
41021323202332
514430133124
61531220050
7323505444
oct111734276
940417833
1019380414
11aa37879
1265a7626
134027401
142806b94
151a7c529
hex127b8be

19380414 has 16 divisors (see below), whose sum is σ = 38808720. Its totient is φ = 6452160.

The previous prime is 19380409. The next prime is 19380419. The reversal of 19380414 is 41408391.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19380409) and next prime (19380419).

It is a super-2 number, since 2×193804142 = 751200893622792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19380419) 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, 5344 + ... + 8204.

It is an arithmetic number, because the mean of its divisors is an integer number (2425545).

Almost surely, 219380414 is an apocalyptic number.

19380414 is an abundant number, since it is smaller than the sum of its proper divisors (19428306).

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

19380414 is a wasteful number, since it uses less digits than its factorization.

19380414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 19380414 is about 4402.3191615329. The cubic root of 19380414 is about 268.6092824536.

The spelling of 19380414 in words is "nineteen million, three hundred eighty thousand, four hundred fourteen".

Divisors: 1 2 3 6 1129 2258 2861 3387 5722 6774 8583 17166 3230069 6460138 9690207 19380414