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120630230 = 2572716359
BaseRepresentation
bin1110011000010…
…10101111010110
322101222122120022
413030022233112
5221340131410
615545305142
72663224430
oct714125726
9271878508
10120630230
1162102306
12344951b2
131bcb7a46
1412041650
15a8cc455
hex730abd6

120630230 has 32 divisors (see below), whose sum is σ = 249108480. Its totient is φ = 41199840.

The previous prime is 120630203. The next prime is 120630233. The reversal of 120630230 is 32036021.

It is a junction number, because it is equal to n+sod(n) for n = 120630199 and 120630208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120630233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15791 + ... + 22149.

It is an arithmetic number, because the mean of its divisors is an integer number (7784640).

Almost surely, 2120630230 is an apocalyptic number.

120630230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120630230 is an abundant number, since it is smaller than the sum of its proper divisors (128478250).

120630230 is a wasteful number, since it uses less digits than its factorization.

120630230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 120630230 is about 10983.1794121739. The cubic root of 120630230 is about 494.1043969564.

Adding to 120630230 its reverse (32036021), we get a palindrome (152666251).

The spelling of 120630230 in words is "one hundred twenty million, six hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 271 542 1355 1897 2710 3794 6359 9485 12718 18970 31795 44513 63590 89026 222565 445130 1723289 3446578 8616445 12063023 17232890 24126046 60315115 120630230