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12423375 = 3553409
BaseRepresentation
bin101111011001…
…000011001111
3212101011200000
4233121003033
511140022000
61122135343
7210411516
oct57310317
925334600
1012423375
117015958
1241b1553
13275c913
14191567d
151156000
hexbd90cf

12423375 has 48 divisors (see below), whose sum is σ = 23281440. Its totient is φ = 6609600.

The previous prime is 12423373. The next prime is 12423377. The reversal of 12423375 is 57332421.

It is an interprime number because it is at equal distance from previous prime (12423373) and next prime (12423377).

It is not a de Polignac number, because 12423375 - 21 = 12423373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423373) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30171 + ... + 30579.

It is an arithmetic number, because the mean of its divisors is an integer number (485030).

Almost surely, 212423375 is an apocalyptic number.

12423375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12423375 is a deficient number, since it is larger than the sum of its proper divisors (10858065).

12423375 is an frugal number, since it uses more digits than its factorization.

12423375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 417 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 12423375 is about 3524.6808366149. The cubic root of 12423375 is about 231.6042537273.

Adding to 12423375 its reverse (57332421), we get a palindrome (69755796).

The spelling of 12423375 in words is "twelve million, four hundred twenty-three thousand, three hundred seventy-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 125 135 225 243 375 405 409 675 1125 1215 1227 2025 2045 3375 3681 6075 6135 10125 10225 11043 18405 30375 30675 33129 51125 55215 92025 99387 153375 165645 276075 460125 496935 828225 1380375 2484675 4141125 12423375