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12930030 = 235517313
BaseRepresentation
bin110001010100…
…101111101110
3220022220200000
4301110233232
511302230110
61141045130
7214621611
oct61245756
926286600
1012930030
117331583
1243b67a6
1328a9409
141a08178
1512061c0
hexc54bee

12930030 has 96 divisors (see below), whose sum is σ = 37031904. Its totient is φ = 3234816.

The previous prime is 12930019. The next prime is 12930031. The reversal of 12930030 is 3003921.

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

It is a junction number, because it is equal to n+sod(n) for n = 12929985 and 12930012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12930031) 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, 41154 + ... + 41466.

It is an arithmetic number, because the mean of its divisors is an integer number (385749).

Almost surely, 212930030 is an apocalyptic number.

12930030 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 12930030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18515952).

12930030 is an abundant number, since it is smaller than the sum of its proper divisors (24101874).

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

12930030 is a wasteful number, since it uses less digits than its factorization.

12930030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 340 counting only the distinct ones).

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

The square root of 12930030 is about 3595.8350907682. The cubic root of 12930030 is about 234.7108560930.

Adding to 12930030 its reverse (3003921), we get a palindrome (15933951).

The spelling of 12930030 in words is "twelve million, nine hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 81 85 90 102 135 153 162 170 243 255 270 306 313 405 459 486 510 626 765 810 918 939 1215 1377 1530 1565 1878 2295 2430 2754 2817 3130 4131 4590 4695 5321 5634 6885 8262 8451 9390 10642 13770 14085 15963 16902 20655 25353 26605 28170 31926 41310 42255 47889 50706 53210 76059 79815 84510 95778 126765 143667 152118 159630 239445 253530 287334 380295 431001 478890 718335 760590 862002 1293003 1436670 2155005 2586006 4310010 6465015 12930030