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12903030 = 233576827
BaseRepresentation
bin110001001110…
…001001110110
3220021112122000
4301032021312
511300344110
61140320130
7214450110
oct61161166
926245560
1012903030
117313268
1243a3046
13289a03a
1419dc3b0
1511ed1c0
hexc4e276

12903030 has 64 divisors (see below), whose sum is σ = 39329280. Its totient is φ = 2948832.

The previous prime is 12903029. The next prime is 12903041. The reversal of 12903030 is 3030921.

12903030 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

12903030 is a modest number, since divided by 3030 gives 1290 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12902994 and 12903012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1524 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (614520).

Almost surely, 212903030 is an apocalyptic number.

12903030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12903030 is an abundant number, since it is smaller than the sum of its proper divisors (26426250).

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

12903030 is a wasteful number, since it uses less digits than its factorization.

12903030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850 (or 6844 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 12903030 is about 3592.0787853275. The cubic root of 12903030 is about 234.5473707990.

Adding to 12903030 its reverse (3030921), we get a palindrome (15933951).

The spelling of 12903030 in words is "twelve million, nine hundred three thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 105 126 135 189 210 270 315 378 630 945 1890 6827 13654 20481 34135 40962 47789 61443 68270 95578 102405 122886 143367 184329 204810 238945 286734 307215 368658 430101 477890 614430 716835 860202 921645 1290303 1433670 1843290 2150505 2580606 4301010 6451515 12903030