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12420350 = 252248407
BaseRepresentation
bin101111011000…
…010011111110
3212101000111222
4233120103332
511134422400
61122113342
7210366635
oct57302376
925330458
1012420350
117013658
1241ab852
13275b427
14191451c
151155185
hexbd84fe

12420350 has 12 divisors (see below), whose sum is σ = 23101944. Its totient is φ = 4968120.

The previous prime is 12420349. The next prime is 12420371. The reversal of 12420350 is 5302421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124154 + ... + 124253.

It is an arithmetic number, because the mean of its divisors is an integer number (1925162).

Almost surely, 212420350 is an apocalyptic number.

12420350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12420350 is a deficient number, since it is larger than the sum of its proper divisors (10681594).

12420350 is a wasteful number, since it uses less digits than its factorization.

12420350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248419 (or 248414 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12420350 is about 3524.2516936223. The cubic root of 12420350 is about 231.5854542267.

Adding to 12420350 its reverse (5302421), we get a palindrome (17722771).

The spelling of 12420350 in words is "twelve million, four hundred twenty thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 248407 496814 1242035 2484070 6210175 12420350