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12423450 = 23521323277
BaseRepresentation
bin101111011001…
…000100011010
3212101011202210
4233121010122
511140022300
61122135550
7210411654
oct57310432
925334683
1012423450
117015a16
1241b15b6
13275c970
1419156d4
151156050
hexbd911a

12423450 has 96 divisors (see below), whose sum is σ = 34747776. Its totient is φ = 2914560.

The previous prime is 12423409. The next prime is 12423457. The reversal of 12423450 is 5432421.

12423450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12423457) 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, 44712 + ... + 44988.

It is an arithmetic number, because the mean of its divisors is an integer number (361956).

Almost surely, 212423450 is an apocalyptic number.

12423450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17373888).

12423450 is an abundant number, since it is smaller than the sum of its proper divisors (22324326).

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

12423450 is a wasteful number, since it uses less digits than its factorization.

12423450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12423450 is about 3524.6914758600. The cubic root of 12423450 is about 231.6047197919.

Adding to 12423450 its reverse (5432421), we get a palindrome (17855871).

It can be divided in two parts, 1242 and 3450, that multiplied together give a square (4284900 = 20702).

The spelling of 12423450 in words is "twelve million, four hundred twenty-three thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 23 25 26 30 39 46 50 65 69 75 78 115 130 138 150 195 230 277 299 325 345 390 554 575 598 650 690 831 897 975 1150 1385 1495 1662 1725 1794 1950 2770 2990 3450 3601 4155 4485 6371 6925 7202 7475 8310 8970 10803 12742 13850 14950 18005 19113 20775 21606 22425 31855 36010 38226 41550 44850 54015 63710 82823 90025 95565 108030 159275 165646 180050 191130 248469 270075 318550 414115 477825 496938 540150 828230 955650 1242345 2070575 2484690 4141150 6211725 12423450