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12315050 = 2521122391
BaseRepresentation
bin101110111110…
…100110101010
3212011200001222
4232332212222
511123040200
61115542042
7206450636
oct56764652
925150058
1012315050
116a51530
12415a922
132722517
1418c7dc6
151133d85
hexbbe9aa

12315050 has 24 divisors (see below), whose sum is σ = 24989472. Its totient is φ = 4478000.

The previous prime is 12315013. The next prime is 12315077. The reversal of 12315050 is 5051321.

It is a super-3 number, since 3×123150503 (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10646 + ... + 11745.

It is an arithmetic number, because the mean of its divisors is an integer number (1041228).

Almost surely, 212315050 is an apocalyptic number.

12315050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12315050 is an abundant number, since it is smaller than the sum of its proper divisors (12674422).

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

12315050 is a wasteful number, since it uses less digits than its factorization.

12315050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22414 (or 22409 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12315050 is about 3509.2805530479. The cubic root of 12315050 is about 230.9291337624.

Adding to 12315050 its reverse (5051321), we get a palindrome (17366371).

The spelling of 12315050 in words is "twelve million, three hundred fifteen thousand, fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 22391 44782 111955 223910 246301 492602 559775 1119550 1231505 2463010 6157525 12315050