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120432230220 = 22354366170619
BaseRepresentation
bin111000000101001010…
…0011111111101001100
3102111212010111011220010
41300022110133331030
53433121122331340
6131154212353220
711462265031551
oct1601224377514
9374763434803
10120432230220
1147090944085
121b410615810
13b483901ab3
145b868daa28
1531ecdd3b80
hex1c0a51ff4c

120432230220 has 96 divisors (see below), whose sum is σ = 345579252480. Its totient is φ = 31320495360.

The previous prime is 120432230213. The next prime is 120432230221. The reversal of 120432230220 is 22032234021.

It is not an unprimeable number, because it can be changed into a prime (120432230221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1670071 + ... + 1740689.

It is an arithmetic number, because the mean of its divisors is an integer number (3599783880).

Almost surely, 2120432230220 is an apocalyptic number.

120432230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120432230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172789626240).

120432230220 is an abundant number, since it is smaller than the sum of its proper divisors (225147022260).

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

120432230220 is a wasteful number, since it uses less digits than its factorization.

120432230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71335 (or 71333 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 120432230220 its reverse (22032234021), we get a palindrome (142464464241).

The spelling of 120432230220 in words is "one hundred twenty billion, four hundred thirty-two million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 661 860 1290 1322 1983 2580 2644 3305 3966 6610 7932 9915 13220 19830 28423 39660 56846 70619 85269 113692 141238 142115 170538 211857 282476 284230 341076 353095 423714 426345 568460 706190 847428 852690 1059285 1412380 1705380 2118570 3036617 4237140 6073234 9109851 12146468 15183085 18219702 30366170 36439404 45549255 46679159 60732340 91098510 93358318 140037477 182197020 186716636 233395795 280074954 466791590 560149908 700187385 933583180 1400374770 2007203837 2800749540 4014407674 6021611511 8028815348 10036019185 12043223022 20072038370 24086446044 30108057555 40144076740 60216115110 120432230220